What is the relative major of a minor?

The answer is C minor and major.

Explanation:

Its Relative Key has no Flats and no Sharps, and its Parallel Major is A Major.   Relative Keys are Major and Minor scales that have a similar Key Signatures.   The Relative Minor of a whatever Major Key (or the Relative Major of a whatever Minor Key), have a similar Key Signatures however extraordinary Tonic

all of them except "c"