that's one of the remarks that(is/are)intended to start arguments.选哪个?why?

that's one of the remarks that(is/are)intended to start arguments.选哪个?why?
that's one of the remarks that(is/are)intended to start arguments.选哪个?why?

that's one of the remarks that(is/are)intended to start arguments.选哪个?why?
这是打算开始争论的remarks中的一个
that定语从句是修饰remarks,是复数,所以用are

are
句子中出现one of修饰复数名词，其谓语要用复数。本题是一个定语从句，但仍符合这个规则，所以选择are.