Which of the Following Is Probably the Best Explanation for Why

Which of the following is probably the best explanation for why many people claim that they don't dream?

A) The pituitarisine in their brains does not activate the message of the thalamus while they sleep, so they do not experience "sensory events," or dreams, in their sleep.
B) The dorsolateral hypothalamus is not actively connected to the ventromedial hypothalamus, and so they are incapable of coding their REM experiences as dreams.
C) They do not experience the daily events, both positive and negative, that stimulate dream activities.
D) They simply do not remember their dreams; however, if they were awakened during a REM stage, they would be much more likely to remember a dream that they just woke up from.