The Intercept cut off by a line from y−axis is twice that of the intercept cut off from the x−axis. If the line passesthrough (1,2), then the equation of the line is
a. 2x + y = 4
b. 2x + y - 6 = 0
c. 2x - y = 4
d. 2x - 2y + 2 = 0