Which of the Following Best Compares Two Main Theories About

question 16

Multiple Choice

Which of the following best compares two main theories about the dispersal of our ancestors from Africa?

• A) The African emergence hypothesis proposes that modern humans are descendants from a fairly recent African ancestor, and the multiregional hypothesis proposes that modern humans are descendants of ancestors that never lived in Africa.
• B) The African emergence hypothesis proposes that modern humans are descendants from a fairly recent African ancestor, and the multiregional hypothesis proposes that modern humans are descendants of recent dispersals.
• C) The African emergence hypothesis proposes that modern humans are descendants from a fairly old African ancestor, and the multiregional hypothesis proposes that modern humans are descendants of earlier dispersals.
• D) The African emergence hypothesis proposes that modern humans are descendants from a fairly recent African ancestor, and the multiregional hypothesis proposes that modern humans are descendants of earlier dispersals.

---

Definitions:

Contribution Margin

The amount remaining from sales revenue after variable production costs have been deducted, contributing to covering fixed costs.

Controllable Margin

The portion of operating income that can be directly controlled or influenced by managers at certain levels of an organization.

Operating Assets

Assets directly involved in the manufacturing or sale of products or services in the normal course of business.

Return on Investment

A measure of the profitability of an investment, calculated as the net profit of the investment divided by the initial cost.