Control and Data a tentative, testable scientific explanation

useful for determining the effect of the independent variable

equal distribution i think.

the answer to your question is slate

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

if you listed your answers right then i believe your answer is b.