An subordinating conjunction makes clauses dependent. So your answer is D.
"switch" or "case statement"
Answer:
C.
Explanation:
Opportunity cost is the forgone benefit that would have been derived from an option not chosen. In this case, the lost is the potential profit they might make, which is C.
Answer:
Della becomes suddenly nervous about what Jim will think about her hair and how she will tell him how she sold it. She is unsure whether Jim will become cross with her.
I hope this is helpful :] Good luck ^^