Answer:
B. 50°
Step-by-step explanation:
∠KPN is a vertical angle with ∠MPL, the third angle in triangle MPL. Since vertical angles are congruent, the measure of ∠KPN will be the same as the measure of ∠MPL:
∠KPN = ∠MPL = 180° -60° -70°
∠KPN = 50°
