Answer:
ready to perform or ready to do something
A cause-and-effect relationship is signaled by the words "But since."
example;
broad topic: Depression
narrowed topic: what causes depression?
Targeted question: What studies in the past have shown a direct correlation between substance abuse and depression?
C both their are only two passable answers so yea good luck
I belief this is the answer
B. The sets will have to be designed before they can be made
-Agarvated