Answer:-C. is the correct option."m∠P = m∠O"
Explanation:-
Let the measure of ∠O be x
Then ∠2= 2x ..........>Exterior angle of triangle
We know that for a triangle ,
Exterior angle= Sum of opposite interior angles
⇒∠2=∠O+∠P
⇒2x=x+∠P [Substitute values of ∠O and ∠2]
⇒x=∠P [Subtract x on both sides]
⇒∠P=∠O=x [Transitive property]
∴ C. is the correct option.