The sentence "Barry was never sure about what he wanted to do after high school" is the thesis statement out of the given.
Step-by-step explanation:
A thesis statement is one which sums up the core claim in the paragraph. Although such statements appear in the end of the paragraph, in this paragraph, it appears in the beginning as that sums up Barry's situation.
In this case, it is an expository thesis situation as that statement comes with a background story. A sentence that denotes the primary message of an article or research essay, such as an explanatory paper or essay is called thesis statement. This used to do a claim and immediately answers the question.