From clue $$2$$, James is taller than Leo and Leo is taller than Eugene.  From clue $$3$$, Amos is taller than James.  Rank from tallest to shortest: \textbf{Amos}, James, Leo, \textbf{Eugene}. 
Amos is taller than Eugene.  Leo is shorter than James but taller than Eugene.  James is shorter than Amos.  is the tallest andis the shortest. 

A) Amos, James 
B) James, Eugene 
C) James, Leo 
D) Amos, Eugene 