求教TT-GWD-2-3

Not one of the potential investors is expected to make an offer to buy First Interstate Bank until a merger agreement is signed that includes a provision for penalties if the deal were not to be concluded.

1. is expected to make an offer to buy First Interstate Bank until a merger agreement is signed that includes a provision for penalties if the deal were
2. is expected to make an offer for buying First Interstate Bank until they sign a merger agreement including a provision for penalties if the deal was
3. is expected to make an offer to buy First Interstate Bank until a merger agreement be signed by them with a provision for penalties if the deal were
4. are expected to make an offer for buying First Interstate Bank until it signs a merger agreement with a provision for penalties included if the deal was
5. are expected to be making an offer to buy First Interstate Bank until they sign a merger agreement including a provision for penalties if the deal were

   Answer: C

该题答案是C还是A?

if the deal were....究竟修饰什么?似乎不管A还是C,逻辑意思都不对.请各位高手解释一下

the deal 指的是 merger agreement is signed

I prefer A。

C: "be" signed 中的be不对， 另外them指代不明。

if the deal 是什么意思?