(1 point) Find a vector parametric equation (t) for the line through the points P = (1, 0, -5) and Q = (2, 3, -7) for each of the given conditions on the parameter t. (a) If T(0) = (1, 0, -5) and T(5) = (2, 3, -7), then T(t ) = (b) If F(3) = P and T(6) = Q, then F (t) = (c) If the points P and Q correspond to the parameter values t = 0 and t = -2, respectively, then " (t ) =