A line joining the points A(7, 5√3) and B(6, 4√3) is rotated about A in a clock wise direction through an angle of 15°. A point, lies on the new line thus formed C(x, -7). The line is rotated about C in an clock wise direction through an angle of 15°. Find the equation of the new line thus formed.

1) 1
2) 2
3) 3
4) 4
5) 5