The correct answer is B. You can do either this or that, but that is it.
Step-by-step explanation:
A false dilemma fallacy is a type of faulty argument that occurs when it is assumed a situation has only two options but in reality, there are more options and these are not being considered which creates a false dilemma as it is assumed something can be just from one way or from the other. For example, claiming someone is an atheist because he opposed a specific religious belief when indeed there are many more possibilities. Considering this, the situation that is an example of the false dilemma fallacy is "You can do either this or that, but that is it" because in this situation only two options are being considered but it is probable there are many more.