Hello. You did not show the excerpt to which the question refers, which makes it impossible for that question to be answered accurately.
However, we can affirm that the sentence that you must select is one that shows statistical and / or scientific information, which allows the proof of a certain position or argument in relation to the text's theme. In that case, you should look for that type of information in the text you have.
This is true. A thesis statement is you opinion. This means that not everyone will agree with your opinion. For example:
Smoking should be illegal because it is unhealthy, costly, and an annoyance.
Though you supported your opinion, someone who enjoys smoking may say that it is not costly or annoying. This is why a thesis statement is controversial.
Answer:
A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.
The answer should be A. their
It is (D) all responses provided
