A few words with the prefix pater/part are:
patriarch - head of the household
paternal - relating to the father
paternity - test to determine child's father.
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.
It clarifies the first part should be you answer here. i say this because one needs to clarify what is trying to be said.
Its FALSE I took the test