Answer:
B
Explanation:
Since parallel lines p and q are cut by transversal l, then
1. True, angles a and b are supplementary (they add up to 180 degree)
2. False, angles b and g are not congruent
3. True, angles c and d are supplementary and angles c and h are congruent, so angles d and h are supplementary
4. True, angles f and h are congruent as vertical angles.