Which of the following are parametric equations for the line in R through the points P = (2, -2, 5) and Q = (4, 2, 1). Ox = 2-t y = -2 - 2t z = 5+ 2t tER O x = 2 - 2t y = -2- 3t 2 = 5+2t tER O x = 2+t y = -2+2t z = 5+2t tER O x = 2- 2t y = -2 z =5+3t tER