Interrogative because it is a question or I mean that is what I see
B. One of your troop members began to cry.
It doesn't explain why he is crying, and is the most suspenseful, but one could argue it was C, because they could have going the wrong direction, but B is the most suspenseful due to the crying and emotion in it.
Hope this helps, even though I just debated aloud.
C) carefully planned
Reason:
he wouldn’t make a quick decision or a accidental decision and it says he planned it so it’s not lucky he carefully planned to go to the out of state college
The clause <em>when we can rest </em>is a subordinate/dependent clause, meaning that it cannot stand on its own - it has to be a part of a larger, independent clause, as is the case here.