the vertices of a triangle are P(-6,-4),Q(-6,-8) and R(2,-3). Name the vertices of the image reflected across the line y=x

a. P(-4,-6),Q(-8,-6), R(-3, 2)
b. P(6, 4), Q(6, 8), R(-2, 3)
c. P(4, 6), Q(8, 6), R(3, -2)
d. p(-6,-8), Q(2, -3), R(-4, -6)

c. P(4, 6), Q(8, 6), R(3, -2)