The first thing    she did was go up to her trainer and thank the trainer  all the help the trainer had given her during the training.

1. A.
   which, for
2. B.
   that, because
3. C.
   that, for
4. D.
   what, for

The first thing     she did was go up to her trainer and thank the trainer   all the help the trainer had given her during the training.

A. which, for     B. that, because        C. that, for        D. what, for