Does being a morning person versus a night person (a lark versus an owl) influence performance on cognitive tests throughout the day?

a. Night people are more affected by subliminal messages that occur after 8 p.m., which strengthens their ability to remember things at night.
b. Across all types of tasks that require cognitive effort, both morning people and night people perform better during their preferred time of day.
c. It doesn’t. There is no evidence that there is a cognitive benefit for certain individuals during certain times of day.
d. There is a slight benefit to testing morning people (larks) on memorization tests in the morning, but there is no advantageous time of day to test night owls.