Answer:
In Economics, the want satisfying power of a commodity is called “utility”. Utility is the capacity of a commodity to satisfy particular human want.
The letter that identifies the country of Napol is N.
Scientific ideas don't need to be published in an encyclopedia: rather, they need to be published in a peer-reviewed journal.
Also, public acceptance is not relevant: global warming is accepted in the scientific community despite a lack of popular acceptance.
The correct answer is: They are new ideas. (and once they're accepted they can become laws).
The answer is The Massai. This tribe is a nomadic group of people from central and southern Kenia and northern Tanzania.