B. A pair of alternate exterior angles with measures of 130 and 50
Step-by-step explanation:
The Alternate Exterior Angle Theorem states that if a pair of lines are congruent, then the alternate exterior angles are congruent. Since the lines are parallel and the said angle measures are not, Situation B is impossible.
The GCF is based upon what integer divides evenly into two numbers; the LCM is based upon what integer two numbers share in a list of multiples. The GCF must be a prime number; the LCM must be a composite number.
