A Nurse Counsels a Patient on Ways to Determine the Person's

A nurse counsels a patient on ways to determine the person's total sleep requirement. Which instruction would produce the most accurate results?

A) "For 1 full week, record what you remember about your dream content and related feelings as soon as you wake up. Bring the record to your next appointment."
B) "While off work for 1 week, go to bed at your usual time and wake up without an alarm. Record how many hours you sleep and then average the findings."
C) "For 2 full weeks, record how much time you sleep each night and rate your daytime alertness on a scale of 1 to 10. Calculate your average alertness score."
D) "All adults need 7 or 8 hours of sleep to function properly. Let's design ways to help you reach that goal."