Half a loaf of bread costs $$6$$ pence more than one-fourth of a loaf of bread. How many pence does a whole loaf of bread cost? ($$1998$$ Math Kangaroo Problem, Level $$3-4$$, Question \#$$14$$) 
选项为:A:$$6$$  B:$$12$$  C:$$18$$  D:$$24$$  E:$$30$$  请回答其中一个选项.