请教ETS笔考题52－14,我搞明白了，此题大全里有，撤销吧，不好意思

14. Intended primarily to stimulate family summer travel, the new airfare, which allows both an adult and a child to fly for the price of one ticket, and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than fourteen.

(A) and also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than

(B) and also lessens the advance-purchase requirement for family travel to a seven-day minimum from

(C) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than that of

(D) also lessens the advance-purchase requirement for family travel to a seven-day minimum from

(E) also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than

KEY:E