Question

1. knowing that mega means \large or great,\ what can you infer about the meaning of megastar?

a very famous and greatly admired star or celebrity
an average, ordinary star
a very dim or faint star
a star that is very small in size

Explanation:

Since "mega" means large or great, a megastar is a very large - in terms of fame and admiration - star or celebrity.

Answer:

A. A very famous and greatly admired star or celebrity