please help! it would make my day! also brainliest :)

Which of these revisions corrects the inappropriate shift in verb tense?

Stephanie will call us when they leave the restaurant. We'll hide in the living room and turn off the lights. When Frank walks in, everyone will jump out and yell "Surprise!" He didn't suspect a thing!

A. Stephanie called us
B. everyone jumps out and yells
C. We've been hiding
D. He will not suspect