Which component would NOT be included in the definition of money?

Me with this psychology homework, i’m struggling with it.

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.

Which of these cities would be found in the most densely populated area on northern section of the map? a) beijing b) seoul c) shanghai d) tokyo