4. Factors that affect people's food choices and customs may include the following except?
a. ethnic background
b. local food supply
c. climate and geography
d. how tall their parents were

Which factor contributed to the rise of african empires such as ghana and mali ? a. their creation and involvement in trade networks b. they focused only on agricultural production. c. they didn’t engage in warfare with other nations d. their geographic location protected them from attacks.