What effect can a small bright object have on balance?

Correct answer: It can attract attention and increase visual weight

The governing concept is visual weight: size is not the only factor that matters in balance. A small object with bright colour or strong intensity can attract the eye and therefore seem visually heavier than its physical size suggests. Thus option A is correct. A bright object does not automatically destroy balance, and it is not invisible or irrelevant; the artist can use it to balance a larger, quieter form.