I have noticed you struggle a lot with CR.

it is a difficult part of the test to tackle. I understand you. However, you must improve to have no rooms for error.

An assumption question actually is a sort of inference question with the difference that the first one is unstated in the passage but in somehow resemble what the passage itself acts, in a way or another (this in a nutshell); inference instead is a type of question through which one of the sentences of the stimulus is said in other words.

Reasoning that the students perform better on math tests when they are fully awake,


Nothing in the passage is mentioned about the quality, so it CANNOT be the right answer.

Hope this helps.

Regards