Answer:
A. 
C. 
Step-by-step explanation:
Given:
The given line is 
Express this in slope-intercept form  , where m is the slope and b is the y-intercept.
, where m is the slope and b is the y-intercept.

Therefore, the slope of the line is  .
.
Now, for perpendicular lines, the product of their slopes is equal to -1.
Let us find the slopes of each lines.
Option A:

On comparing with the slope-intercept form, we get slope as   .
.
Now,  . So, option A is perpendicular to the given line.
. So, option A is perpendicular to the given line.
Option B:
For lines of the form  , where, a is a constant, the slope is undefined. So, option B is incorrect.
, where, a is a constant, the slope is undefined. So, option B is incorrect.
Option C:
On comparing with the slope-point form, we get slope as   .
.
Now,  . So, option C is perpendicular to the given line.
. So, option C is perpendicular to the given line.
Option D:

On comparing with the slope-intercept form, we get slope as   .
.
Now,  . So, option D is not perpendicular to the given line.
. So, option D is not perpendicular to the given line.