Answer :
we know that
Exterior angle:
An exterior angle of a triangle is an angle formed by one side of the triangle and the extension of an adjacent side of the triangle
we can draw diagram
so,
option-A.........Answer

we know that
Exterior angle:
An exterior angle of a triangle is an angle formed by one side of the triangle and the extension of an adjacent side of the triangle
we can draw diagram
so,
option-A.........Answer