Final answer:
The measure of an angle that is complementary to ZMOP is 15 degrees.
Step-by-step explanation:
The measure of an angle that is complementary to ∠ZMOP can be found by subtracting the measure of ∠ZNOR from 90 degrees. Since the measure of ∠ZNOR is given as 75 degrees, we can subtract 75 degrees from 90 degrees to find the measure of the complementary angle:
90° - 75° = 15 degrees
Therefore, the answer is 15 degrees (option a)