Would you mark Dima's answer wrong?

7년 전

Hello!
This is an FCE question.

Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. You must use between two and five words, including the word given.

I don’t want to go out tonight.
STAY
I’d _______________ tonight.

DIMA'S ANSWER: I’d BETTER stay HOME tonight.
KEY SAYS: I’d RATHER stay IN tonight.

Would you mark Dima's answer wrong?

Thank you! 