Which of the Following Examples Best Captures the Concept of Sleep

Multiple Choice

Which of the following examples best captures the concept of sleep debt?

A) Research shows that one minute of lost sleep translates to a one-second reduction in your life span.
B) You always sleep eight hours a night, even if you go to bed late.
C) You generally need about five hours of sleep after you have had a nap.
D) After staying up for three days, you will sleep much longer than normal.