The line segment joining the points (3, -4) and (1, 2) is trisected at the points P and Q. If the coordinates of P and Q are (p, -2) and (5/3, q) respectively then the value of p and q is
a. p=7/3,q=−3
b. p=7/3,q=0
c. p=5/3,q=0
d. None of these