Often students are told to just put the “best” answer. To that I say, AHHHH!!!!
If the question is not an “except” question, three answers are false. One is true. There cannot be a true answer and a truer answer. You cannot “know” choice A is true and pick choice B, because it also sounds true. When you pick B, you are declaring A, C and D are all false.
If an answer cannot be false, it is true. When you are struggling between two choices, ask yourself if either one could ever be false. If it cannot be false, it’s true. For example, one choice is that “owners and renters both have estates.” Another choice is that “they both have freehold estates.” If you choose they both have freehold estates, you are also stating that they do not both have estates. That is an impossible combination of choices. They cannot both have freehold estates unless both they have estates. On the other hand it is possible that they could have estates that are not both freehold