Read the paragraph. Read and complete the sentence with the correct part.
Stage three usually lasts from 35 to 45 minutes after falling asleep, and brain waves slow down and decrease. You can sleep easily through many disturbances such as noises and movements. Waking up will cause disorientation and confusion for a few moments. Other names for this stage include "slow-wave sleep" and "Delta sleep". Sleepwalking, night terrors, and sleep talking may occur during this stage.
During stage three of sleep,...

• your body feels any pain.
• you may fall asleep in spite of noises and movements.
• you cannot fall asleep.
• you feel nervous.