Question

which is a thesis statement?
the cost of college tuition in the united states has been steadily increasing since the 1970s.
what should the government do to help with the rising cost of tuition in the united states?
the government should subsidize college for median - income americans to help with the rising cost of tuition.

Explanation:

A thesis statement presents a claim or argument that can be debated. The first option is a factual statement. The second is a question. The third presents an argument (the government should take a specific action) which is debatable, fitting the criteria of a thesis statement.

Answer:

The government should subsidize college for median - income Americans to help with the rising cost of tuition.