Skyla Smith Is Going Camping with Her Mom and Dad

Skyla Smith is going camping with her mom and dad. She asks if her friend Jessica can come along. Jessica's parents agree, but inform the Smiths that Jessica has somnambulism. This means that _____

A) Jessica talks in her sleep.
B) Jessica experiences periods of time when she stops breathing while sleeping.
C) Jessica may fall asleep out of the blue with no apparent reason.
D) Jessica walks in her sleep.