In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

During active sleep, the body is still, (1)_______ the brain is active. The eyes dart back and forth behind closed lids, blood pressure (2)______ and the breathing pattern speeds up. Rapid eye movement sleep plays a vital role in harmonising the experiences we have in the world outside. An EEG of someone during rapid eye movement sleep looks almost the same as the EEG of a person in the (3)______ state, although one is still asleep and the body is still (4)__________.