I think the correct subordination conjunction to complete the sentence would be : D. whatever
Whatever he did to study for the final exam must be have been helpful; his grade improved from a B to an A. The other one seems not to make any sense
hope this helps
Answer:
if thats a test you have to do it yourself, sorry ^^
Explanation:
Answer: B. Connection to nature can influence cultures.
Explanation: A theme is something that gives a lesson, and doesn’t talk about someone or something in specifics. It’s more of a general idea!
