Question

Which is a complex sentence?

A) We need dedicated volunteers to get this garden growing!
B) Anything that gets your blood flowing is good for you and your body.
C) The vegetables raised in this garden will benefit your community in countless ways.
D) Even if you’ve never handled a trowel in your life, we’re asking for your assistance.

Answer 1

D) Even if you’ve never handled a trowel in your life, we’re asking for your assistance.

Answer 2

I think that the best answer would be D) because they are asking for your assistance.  As I said, complex sentences has a independent and a dependent clause. The "even if you've never handled a trowel in your life" would be the dependent clause because it can't stand alone.