Question

passage 3 suggests that dreams arent easy to study. what are two ways that the author supports this idea? he emphasizes the number of people who participated in the study. he states that some studies have already been conducted on animals. he mentions that scientists had to awaken participants when they dozed off. he explains how loud fmri machines can prevent participants from falling asleep. he describes the wait time required to get to the sleep stage that scientists want to study.

Explanation:

• Option 3: If scientists have to awaken participants when they doze off, it shows an obstacle in studying dreams as it disrupts the natural sleep - dream process.
• Option 5: The description of a long wait - time to reach the desired sleep stage for study implies difficulties in conducting the study smoothly.

Answer:

C. He mentions that scientists had to awaken participants when they dozed off.
E. He describes the wait time required to get to the sleep stage that scientists want to study.