what's the question your asking?
David Livingstone was a Scottish missionary, whilst Cecil Rhodes was an English businessman. Both somewhat helped kick start more colonization in Africa, with Livingstone creating a general curiosity of the Nile River, while Rhodes is quoted with starting the British Imperialism in South Africa. Rhodes is technically the founder of South Africa, while Livingstone was a missionary and explorer and was very interested in social justices, such as "rags to riches" and held an anti-slavery stance.
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
Answer:
B). Plateau
Explanation:
I hope this helps and u do good on whatever your doing.
C I believe is the answer