One quarter of a loaf of bread is ``$$1$$.'' Half a loaf of bread is ``$$2$$.''  One quarter of a loaf of bread: $$6 \div (2-1) =6$$. A whole loaf of bread: $$6 \times 4 =24$$. 
Half a loaf of bread costs $$6$$ pence more than one quarter of a loaf of bread. How many pence does a whole loaf of bread cost? 

A) $$6$$ 
B) $$12$$ 
C) $$18$$ 
D) $$24$$ 
E) $$30$$ 