Rose Sleeps About 8 Hours Each Night

Rose sleeps about 8 hours each night.She awakens feeling fine and well rested,but she tends to fall asleep about 2 or 3 times during the day.We can conclude that

A) Rose should be diagnosed with primary hypersomnia.
B) no disorder exists if this behavior does not bother Rose or interfere in her life.
C) Rose should be diagnosed with primary dyssomnia.
D) a medical condition is a more appropriate diagnosis than a sleep disorder.