PLEASE HELP!!!!! I'll give medal and I'll fan your amazing self ;)

Read the following sentence.

We couldn't believe it when we saw the flash mob gathering.

Which type of sentence is the above example?
A. complex sentence
B. compound sentence
C. simple sentence
D. compound-complex sentence

Question

PLEASE HELP!!!!! I'll give medal and I'll fan your amazing self ;) 

Read the following sentence. 
 
We couldn't believe it when we saw the flash mob gathering. 

Which type of sentence is the above example?
A. complex sentence
B. compound sentence
C. simple sentence
D. compound-complex sentence

anonymous · Answer

Do you go to connections academy?

anonymous · Answer

No, sorry.

anonymous · Answer

@ari16 I do could u help me out

anonymous · Answer

Ya sure what do you need

anonymous · Answer

msg me

anonymous · Answer

So I'm guessing  you don't have an answer for my question..Alright

anonymous · Answer

Lol noooo :( :( im sorry i am horrible with school but i go to a school where i can get answers from ppl lol im so sorry :(

anonymous · Answer

Lol it's okay I'll figure it out :)