MN is the diameter of a circle with center O. P and S are two points situated on the circumference of the circle on either side of MN such that ∠PMN = 50° and ∠MNS = 35°. What will be the measure of the degree of difference between ∠PMS and ∠PNS?
1
30°
2
25°
3
55°
4
65°