Mixed tenses in one sentence

Hi,

*Under the condition that Peter is alive and still loves painting.

(A) Peter loves painting so much that he worked as an art teacher at an elementary school.

(B) Peter loved painting so much that he worked as an art teacher at an elementary school.

I learned that it's (A) if you are trying to convey the fact that he still does. However, I read somewhere that it's still best to keep both in past tense in formal writings because (B) does not mean that he doesn't love anymore.

Is (A) the most correct answer if I want to be clear?

Thanks!