question_answer

For what values of 'p' and 'q' are (-2, -1), (p, 0), (4, q) and (1, 2) the vertices of a parallelogram?

A)  \[\text{p}=-\text{1},\text{q}=-\text{3}\]

B)  \[\text{p}=\text{2},\text{q}=\text{3}\]

C)  \[\text{p}=\text{1},\text{q}=\text{3}\]

D)  \[\text{p}=-\text{1},\text{q}=\text{3}\]