Question

Which sentence correctly uses a hyphen?

Answer 1

The correct answer is : The well-known artist arrived.

"well-known" is a compound modifier and, in the sentence above, is used immediately before the noun it modifies. For that reason, it must be hyphenated.

"chocolate-covered" could be hyphenated as well, but its location in the structure is improper for that use, since it comes after the noun it modifies.