Kyndal and Teresa spent the same amount of time studying for a big exam. Kyndal slept between studyi

Kyndal and Teresa spent the same amount of time studying for a big exam. Kyndal slept between studying and taking the exam, whereas Teresa did not. All other things being equal, which of the following is most likely to be true?
 
Neither has an advantage, because sleep is only related to memory for motor and perceptual skills.
 
Teresa has an advantage, because sleeping after learning leads to an increased risk of forgetting.
 
Neither has an advantage, as long as they both got a decent night of sleep at some point.
 
Kyndal has an advantage, because sleeping after learning is believed to strengthen the memories.