How did the neolithic revolution lead to later urban growth

The Neolithic Revolution lead to later urban growth by providing hunter-gatherers the ability to settle in one place, grow crops, and eventually begin to practice other trades. Remember that the Neolithic Revolution was marked by the growth of agriculture, which enabled more and more people to live in one place by relying on crops rather than hunting and gathering.

The answers is most likely b since during a war the other options are just nice to have. but b is needed.