I believe love ? if I'm not correct I apologize!!
Answer:
Correct sentence: Christopher Columbus, born in Genoa, never did reach mainland North America.
Correct Answer: the phrase "born in genoa" should be set off by commas because it's nonessential information
hope this helps! <3
The correct answer is his or her. Everyone is a singular indefinite pronoun; therefore, the singular form his or her agrees with the antecedent.