Most college students are "owls," with performance ________ across the day.Most older adults are "larks," with performance ________ as the day progresses.

A) improving;declining
B) declining;improving
C) declining;staying the same
D) staying the same;declining

According to research on circadian rhythms, college students tend to have a later chronotype, meaning they naturally prefer to stay up later and wake up later. This makes them more alert and productive later in the day, leading to improved performance. On the other hand, older adults tend to have an earlier chronotype and are more alert and productive earlier in the day, with performance declining as the day progresses.