The accurate statement about the Moche civilization is : "Its agriculture was productive enough to feed the population of a city."
The Moche civilization, which thrived on the northern coast of Peru between the 1st and 8th centuries CE, was known for its advanced agricultural practices. They built an extensive irrigation system that allowed them to cultivate a variety of crops, including maize, beans, and squash.
Their agricultural success was crucial in sustaining their urban centers, which included large cities, without relying on widespread human sacrifice like some neighboring civilizations. While there is evidence of violence and warfare in the archaeological record, it cannot be confirmed that they were wiped out by disease. The Moche culture has left behind impressive art and artifacts that provide valuable insights into their way of life.
Therefore, the correct answer is option C.