Find all points(s) of intersection of the line y=2x and the circle x^2+y^2=5
A) (1,2)
B) (1,2) and (-1, -2)
C) (1/2, 1) and (-1/2, -1)
D) (sqrt15/3, 2 sqrt15/3) and (sqrt15/3, -2 sqrt15/3)