Identify the complete adverb clause. What does the adverb clause answer?

Let's write our compositions now so that we can go to the basketball game.

A. Let's write our compositions
B.Let's write our compositions now
C. write our compositions now
D. write our compositions now so that we can go
E. so that we can go
F. so that we can go to the basketball game
G. go to the basketball game
H. to the basketball game