Answer: Narcolepsy
Explanation:
Narcolepsy is a sleeping disorder in which a person tends to fall suddenly due to the unusual brain chemicals and signal.This can cause excessive sleeping, drowsiness at daytime, hallucination,loss in muscle tone, sleep paralysis etc.This disorder might occur due to genetic reasons.
Accordionist to the question's situation, Nolan might be suffering from narcolepsy as he felt asleep in the middle-of-the-conversation of vacation planning .This can be due to extreme and sudden sleep requirement which cause random eye movement sleep.
The correct option is C.
Evidence based tools refers to those tools which have been used by other researchers and which have been declared valid and feasible for research use and real time use.
When you want to use an evidence based tool, you have to ensure that the tool has been used in a situation that is similar to your own, this is necessary in order to obtain valid and accurate result.
Moctezuma was the leader of the Aztecs
