Two teachers are discussing thesis statements. teacher a says that a thesis statement should reflect the main idea of the paragraph that it's in. teacher b says that the thesis statement should reflect the main idea of the entire essay. who is correct?

Teacher B is correct. The thesis states the main idea of the entire essay. Each paragraph should serve the purpose of supporting and/or developing the essay's thesis.

Often, the writer will develop multiple supporting points to achieve this aim. Each body paragraph will develop a different idea which supports the main idea, or thesis of the essay. These smaller ideas ideally will also have a statement within the paragraph that sums them up. Teacher A may have been thinking of the topic sentence, which should reflect the main idea of the paragraph it's in. 

Select the word from the list that best fits the definitionstates the the universe is expanding

If you could reword this for me i could try and answer