During the Ming period, most people worked in agriculture to grow food; however, as some people become more prosperous, the class formed.

which specific shipwreck are you talking about?

i think i will need more detail to answer if this is a specific question on a test, but technology advancements are good for many industries, such as medicine or food industries, new technology could us in medicine in ways such as new scanners to tell us more about our bodies or new cures or vaccines for diseases.

answer is a. counterclaims