help ulit hehe huhuu

Answer:
A.
1. m || n
2. Vertical Angles Theorem
3. Angle 2 is congruent to angle 4
4. Angle 3 is congruent to angle 4
B.
1. Given
2. Vertical Angles Theorem
3. Angle 3 is congruent to angle 4
4. Angle 1 is congruent to angle 4