Which minor key corresponds with 3 sharps?

The minor key that corresponds with 3 sharps is C sharp minor. This can be understood by looking at the key signature of C sharp minor, which indeed has three sharps: F sharp, C sharp, and G sharp.

In contrast, D minor has one flat in its key signature, while F sharp minor contains three sharps but is often confused with C sharp minor because they share similar notes. G minor has two flats in its key signature. By focusing on the sharps, C sharp minor stands out as the only key option with three sharps, solidifying its correct identification. Knowing the order of sharps and flats is crucial in determining the correct minor key signature as well.