Three generations of the Wen family are going to the movies, two from each generation. The two members of the youngest generation receive a 50 \% discount as children. The two members of the oldest generation receive a 25 \% discount as senior citizens. The two members of the middle generation receive no discount. Grandfather Wen, whose senior ticket costs \$ 6.00, is paying for everyone. How many dollars must he pay?
Answer Choices
A. 34
B. 36
C. 42
D. 46
E. 48