Answer:
The correct option is C.
Explanation:
From the given graph it is clear that the v passing thought the coordinates (4,1) and v' passing thought the coordinates (4,-1).
It meas the relation between v and v' is

In option A,
Reflect across the x-axis; rotate 180 degrees, counterclockwise about the origin, then

Therefore option A is incorrect.
In option B,
Reflect across the y-axis; rotate 90 degrees, counterclockwise about the origin, then

Therefore option B is incorrect.
In option C,
Reflect across the line y= -x, rotate 90 degrees, counterclockwise about the origin, then

Therefore option C is correct.
In option D,
Reflect across the line y=x; rotate 180 degrees counterclockwise about the origin, then

Therefore option D is incorrect.