Which is the best way to write the underlined portion of this sentence?

— ExhibitC

Sentence 16:Needless to say, we will be sad if she chooses to leave our organization and the local area.

Which is the best way to write the underlined portion of this sentence? If the original is the best way, choose optionA.

A. will be sad

B. be sad

C. sadly

D. is sad

E. will have been sad

Answer: A