Thank you. Yes, the "either or" statement here also means it can be ~1 and ~2. But C says they are ~1 and ~2. So I don't understand why this must be true.
And isn't sometimes in an "either A or B" statement, A and B are exclusive? Whether they are inclusive or exclusive depends on the nature of A and B?
This is a must be false question stem. An incorrect answer choice, such as C, does not have to be true. It is simply something that could be true.
Also, sometimes A and B are exclusive. However, on the LSAT, or statements are to be treated as inclusive statements, meaning that both can happen. The exception is when the test writers state A or B, but not both. This is a situation of one is selected/one is not selected.
However, sometimes a situation can be viewed as an exclusive or without the need of a "but not both." I always think of the situation: Either you drink water or you do not drink water. There is not a need for me to state "but not both." It is impossible for both to occur.
Tell me if that does not make it clear.