Final answer:
When dreamers' faces are lightly sprayed with cold water, they are more likely to experience lucid dreaming.
Step-by-step explanation:
The correct answer is A) Lucid Dreaming. When dreamers' faces are lightly sprayed with cold water, they are more likely to experience lucid dreaming. Lucid dreaming is a state in which a person becomes aware that they are dreaming and can control the content of their dream. This phenomenon has been studied by neuroscientists like Alan Hobson, who suggests that dreaming may represent a state of protoconsciousness.