Which of the following best shows how river valley civilizations built upon existing Neolithic technology?(1 point)

Responses

River valley civilizations continued to use Neolithic technology and made a few improvements largely unrelated to agriculture.
River valley civilizations continued to use Neolithic technology and made a few improvements largely unrelated to agriculture.

River valley civilizations made discoveries with tools and metallurgy that previous civilizations were unable to produce.
River valley civilizations made discoveries with tools and metallurgy that previous civilizations were unable to produce.

River valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period.
River valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period.

River valley civilizations added new tools in addition to stone tools from the Neolithic period and expanded on preexisting knowledge of metallurgy.

River valley civilizations added new tools in addition to stone tools from the Neolithic period and expanded on preexisting knowledge of metallurgy.

The best answer is:

River valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period.