The writer wants to add a sentence before sentence 8 to show that the third paragraph is refuting the claim made in the second p
aragraph. Which sentence best accomplishes the writer’s goal? A. Not only do babies’ eyes move side to side during REM sleep, but they also move up and down.
B. However, child psychologist David Foulkes argues that babies use REM sleep for other purposes.
C. Contrary to popular belief, REM accounts for only one of the five stages of sleep that all humans, including infants, go through.
D. On the other hand, one study conducted in 2010 indicated that babies have the ability to learn while they are sleeping.
E. Whereas adults spend only a quarter of their sleep time in the REM stage, babies average closer to half their sleep time in this stage.
B. However, child psychologist David Foulkes argues that babies use REM sleep for other purposes.
Explanation:
Answer B
Correct. In the second paragraph, the claim is that because babies spend so much of their time in REM sleep, the stage at which dreaming occurs for adults, they most likely experience dreams. The third paragraph refutes that claim, starting with this sentence that references an expert in the field who argues that babies use their REM sleep time for “other purposes.”
