Can someone please help me

Of the following choices, which ones are characteristics of west african society? select all that apply. a. arabic was the main language used when trading with other societies. b. christianity was the only religion practiced in villages. c. slaves had no rights and were only given specific farming tasks. d. skilled workers were a higher level in the caste system than traders. e. religious rituals encouraged the honoring of ancestors.

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

Humans are the only animals capable of communication