Explanation:

- L is at level 7: This means L is at the lowest level.

- C is above just two employees: Therefore, C is at level 4.

- B is above C: Thus, B is at level 3.

- B is one level above A: So, A is at level 4.

- B is one level below K: Therefore, K is at level 2.

- K is below O: Thus, O is at level 1.

- There are more than four employees above M: M is at level 6.

Position of employees:

1. O

2. K

3. B

4. A

5. C

6. M

7. L

- A is at level 4. Hence, there are three employees above A: O, K, and B.

Answer is Option:3, Three.

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