Out of the choices given, one of the first explorers to investigate the interior of Africa was Dr. David Livingstone. The correct answer is B.
Answer:
Unclear question. However I infer you are referring to US former President Richard W. Nixon.
Explanation:
His ploy was to issue a fake warning that the investigation is harmful to National Security.
Remember, the then President Nixon was under heavy investigation by the F.B.I so he warned that attempts to reveal the truth was going to endanger the country's security just to frustrate the investigations.
Developing nations tend to be more heavily affected by pandemics than developed ones because developing nations lack the resources to control the spread of disease - B. This often is the case and has also been the reason why many deadly viruses have been spread out in Africa for example or some parts of Asia in comparison to the US.
It just be like that sometimes
