Is an argument that does not support
your thesis statement.

I may not have understood your question; I will assume you're trying to fill in the blank.

I suppose that blank is "an opposing argument" or something along those lines. I'm sorry if that answer was vague; consider resubmitting your question with more context for a more detailed answer if needed.

Its True but your actual question is "A thesis statement is supported by arguments"

answer: do

the 'italicized phrase' is a noun clause that is used as a direct object.

hey! what was the rest of the question?