Your Answer is

Correct Answer is J

Explanation

From the properties of right triangles, it can be known that the side corresponding to the 30° angle in a right triangle is half of the hypotenuse, then PQ=5, and it can be known from the Pythagorean theorem that MP=√MQ²-PQ², that is, MP=√10²-5² =5√3, the answer is J.