A. He promised job opportunists in the US military for African Americans from southern states

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- The latitudinal extent of tropical evergreen forestin the northern and southern hemispheres is 10-degree North and South.
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Answer:
B) The Case Study
Explanation:
The case study is a research method that generally uses qualitative data, collected from real events, to explain, explore or describe current phenomena inserted in their context. It is usually a way of deepening an individual unit. It serves to answer questions that the researcher does not have much control over the phenomenon studied. That's why it so risks because the researcher doesn't have control over the studied object.