Many house builders offer rent-to-buy programs that enable a family with insufficient savings for a conventional down payment to be able to move into new housing and to apply part of the rent to a purchase later.
(A)programs that enable a family with insuffcient savings for a conventional down payment to be able to move into new housing and to apply
(B)programs that enable a family with insuffcient savings for a conventional down payment to move into new housing and to apply
(C)programs; that enables a family with insuffcient savings for a conventional down payment to move into new housing, to apply
(D)programs, which enables a family with insuffcient savings for a conventional down payment to move into new housing, applying
(E)programs, which enable a family with insufficient savings for a conventional down payment to be able to move into new housing, applying
题目分析：A中前面有enable但是后面又用to be able to，意思上就重复了，干掉。B没用用be able to，避免了A出现的问题，b不一定对，但是也不算错，留着。C用enables可是这个动词的发起者应该是programs，是复数，不一致，干掉。D也用enables，犯的错误和D类似，干掉。E也用to be able to犯的错误和A类似，干掉。
