Answer:
c. Moderate to high maturity of employee
Explanation:
Marie exhibits a maturity level of moderate to high because according to her boss Marie is an effective learner and is able to learn quickly about the Microsoft excel. She is a good worker and a can quickly grasp new techniques.
The manager should utilize participating style where all the employees are are allowed to participate in the decisions and activities of the organization. Likewise employees will take an active part in the organization and will be accountable and will give efficient output.
Hence the correct option is (c)