The correct answer is d. hunting -gathering.
Hunting and gathering was already existing before this : in fact the neolithic revolution was going away from this lifestyle and starting farming and domestication of animals.
<span>The
walls of the Colosseum were crumbling. The
once-magnificent stadium housed scores of filthy taverns. Thieves lurked in the ancient baths. On Capitoline
Hill, the old center of Roman government, vines grew over the benches of the senators. One
humanist lamented that the Roman Forum once the heart of
an empire, had turned into “a neglected desert here the home of pigs and wild deer, and there a vegetable garden.” </span>
