Story needs to be completed:
The wildflowers that Eric had collected for Ian had wilted because

My choice:
Ian had received them too late.

Story needs to be completed:
Kevin was considered more of a rebel than Dennis because

My choice:
Dennis did not have a problem with authority.

Story needs to be completed:
The diet Michael decided to follow was more efficient than the one William is following because

My choice:
Michael has a lot of vegetables on it.

Story needs to be completed:
Rebecca's skin showed no signs of age, while Christine looked haggard, because

My choice:
Christine consumed lots of cigarettes.