Geometry multiple question, homework help

  

Let statements p, q, r, and s be as follow:
p: angle A and angle B are a linear pair.
q: angle A and angle B are supplementary angles.
r: angle A and angle B are adjacent angles.
s: angle A and angle B are adjacent and supplementary angles.
Substitute for p, q, r, or s, and write the statement below the
way you would read it.
a. angle A and angle B are supplementary if and only if angle A
and angle B are a linear pair
b. If angle A and angle B are a linear pair, then angle A and
angle B are supplementary angles
c. If angle A and angle B are supplementary, then angle A and
angle B are a linear pair
d. angle A and angle B are a linear pair if and only if angle A
and angle B are supplementary