Ronald works for a small biotech firm. When the firm presents the results of its clinical trialsto the FDA, Ronald realizes that the results are not accurate. He reports this to the FDA. Ronald is a(n) .

The correct answer is letter "B": whistleblower.

Explanation:

Whistleblowers are individuals working for a private company or a body of the government who have witnessed unusual activity within the organization where they work and report those events to the corresponding authority so further investigations can be carried out to determine if there is an illegal action being committed or not.

These individuals are covered by the Whistleblower Protection Act of 1989 in front of possible retaliation taken by the agencies reported in the form of salary reductions or terminations.

metallurgy is your answer

the "study of metals and the process of refining ("

note that it says metal. metallurgy has the word "metal" in it, and so is most likely your answer (and is your answer).

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answer; ///i believe the correct answer is(e) complementary to each other;