Tangents are drawn to the circle x2+y2=50 from a point 'P' lying on the X-axis. These tangents meet the Y-axis at points 'P_1' and 'P_2'. Possible coordinates of 'P' so that area of triangle PP_1P_2 is minimum, is
a. (10, 0)
b. (102,0)
c. (−102,0)
d. (103,0)