I am going to go with C (simple sentence) on this one because after the and you do not have another complete sentence therefore it would not be considered a complex sentence. Hopefully this helps.
It would be: 2 + 1 = 3
In short, Your Answer would be 3
Hope this helps!
Answer:
im confused i need more information to help you
Explanation:
A and C are the most important things that belong in your revision plan
