Answer:
C) The vegetables raised in this garden will benefit your community in countless ways.
Explanation:
It's the only option that includes a full sentence with details.
A) Who is we? It doesn't give details
B) Who is "their"? What is the program?
D) Assistance with what?
D because all the others are much more formal but with D it’s contrasted.
Hope this helped :)
"Ever since my sister hacked my Facebook account" is incomplete because it does not finish what "ever since" started.