A. 69 degrees
exterior angles should equal 360 degrees so just add 131+160= 291 , 360-291= 69 degrees
or u can find it by finding the interior angle degrees by using supplementary angles. 180-131= 49 , 180-160= 20, 20+49=69, 180-69= 111 so the missing exterior angle corresponding interior is 111 and u can use supplementary angles to find the exterior. 180-111= 69 degrees