If P and Q are the points of intersection of the circles x2 + y2 + 3x + 7y + 2p – 5 = 0 and x2 + y2 + 2x + 2y – p2 = 0, then there is a circle passing through P, Q and (1, 1) for
(a) all except one value of p
(b) all except two values of p
(c) exactly one value of p
(d) all values of p