Compared with young adults, older adults are especially likely to spend more time in paradoxical sleep. spend less time in deep sleep. complete the sleep cycle more slowly. spend less time in nrem-1 sleep.

I would say that older adults are more likely to spend less time in deep sleep as from my own experience as an older adult I often wake up 2 or 3 times a night but usually get right back to sleep if there are no distractions, whereas my son seems to sleep for longer periods of time. Also, older adults seem to need less sleep time than younger adults.

The answer should be b