Answer:
Nick is correct in believing that Gatsby is a man not to be trusted.
Step-by-step explanation:
Nick Carraway is a character in "The Great Gatsby". Despite being Gatsby's neighbor and attending his parties, he doesn't know anything about Gatsby. He doesn't know how Gatsby got rich, what he does, who his family is, nothing. Nor does anyone in the neighborhood know anything about Gatsby.
For this reason, Nick has serious suspicions about Gatsby and the little he finds out about Gatsby during the narrative, makes him more suspicious, about Gatsby's position in relation to what is outside his objectives. For this reason, he is correct in not thinking that Gatsby is a reliable man.