25. Staff  26. Class-child ratio  (1) There shall be a  Ntlo ya Dikgosi  for Botswana which shall consist of not less than 33  nor more than 35 Members which shall be constituted as follows —  (2) Notwithstanding the provisions of subsection (1)( a ), the number of persons referred to  in that subsection may, by virtue of section 78 (5), be less than 12, but not less than 10. 78.  Designation and selection of Members to  Ntlo ya Dikgosi (1) Except for the  areas of Ghanzi, Chobe, Kgalagadi and North East, the Members for  the areas referred to in  section 77(1)( a ) shall be designated to the  Ntlo ya Dikgosi  according to the established norms and  practices of those areas. (2)The Members for the Ghanzi, Chobe, Kgalagadi and North -East areas referred to in  section 77(1)( a ) shall be selected, from their own number, to the  Ntlo ya Dikgosi  by persons for  the time being performing the functions of the office of Kgosi within each of those areas. (3) For the purpose of selecting the Members under section 77(1)( c ), there shall be 20  regions, as listed in the Second Schedule to this Constitution, the boundaries of which shall be  defined by an Act of Parliament. (4) There shall be a Regional Electoral College for each region composed of paid  Dikgosana  from that region up to and in cluding a Kgosi, which shall—  (5) Notwithstanding the provisions of section 77(1)( a ) and subsections (2) and (4)( c ) of  this section, the areas of Ghanzi and Kgalagadi shall each have the option o f either selecting one  Member under subsection (2) of this section or of each selecting two regional Members under  subsection (4)( c ) of this section, but may not select Members under both subsections. (1) A person shall be qualified to be appointed under section 77(1)( b ) as a Member of the  Ntlo ya Dikgosi  if he or she—  (2) No person shall bequalified to be appointed, selected or designated as a Member of  the  Ntlo ya Dikgosi  if he or she—  Copyright Government of Botswana ( a )  when necessary, meet at a Kgotla or other suitable venue; ( b )  be chaired by a senior government official appointed by the Minister responsible for local  government; and  ( c )  select a Member to the  Ntlo ya Dikgosi  for that region by election or in such other manner  as the Regional Electoral College may agree. ( a )  is a citizen of Botswana; and ( b )  has attained the age of 21 years. ( a )  one person from each of the following areas, which person for the time being performs  the functions of the office  of  Kgosi  in respect of such areas -  (i)  Barolong Farms in the Southern District, (ii)  Chobe in the North West District, (iii)  Ga Malete in the South East District, (iv)  Ga Mmangwato in the Central District, (v)  Ghanzi District,  (vi)  Goo Tawana in the North West District, (vii)  Kgalagadi District,  (viii)  Kgatleng District,  (ix)  Kweneng District,  (x)  Ngwaketse in the Southern District, (xi)  North East District, and (xii)  Tlokweng in the South East District; ( b )  five persons who shallbe appointed by the President; and ( c )  such number of persons, not being more than 20, as may be selected under section  78(4)( c ) of this Constitution. 79.  Qualifications for membership of  Ntlo ya Dikgosi 