During his party in chapter 3, which is an example of the gossip about gatsby?
a. that he was a german spy during the war
b. that his wife was in a mental hospital
c. that he had to pay people to come to his parties
d. that he was friends with the president

The answer is A. he was a german spy during the war.

A. That he was a German spy during the war.

While attending Gatsby's parties, Nick realizes that most people who are there are not actually friends of the host. They seemed to have shown up without ever having met him. Moreover, he notices that there is a lot of gossip going around which concerns Gatsby. Jordan and Lucille tell Nick that Gatsby is rumoured to have been a German spy during the war, among other various stories.

often a noun phrase is just a noun or a pronoun:

people like to have money.

i am tired.

it is getting late.