Gray, a supervisor, is known by her managers to be sharp in her decisions and has a good track record of meeting her goals; gray is a(n) manager.

The correct answer is: Effective.

Explanation:

An effective manager exhibits a series of traits and qualities that allow them to perform extremely well and comply with their managerial duties in a conscientious manner.

Usually, effective managers are profoundly competent at decision making, are acutely aware of the needs of their organization and are reliable, dependable and trustworthy to their employees and their managers.

In this particular case, Gray is an Effective manager because she is known by her managers to be sharp in her decisions and has a good track record of meeting her goals.

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