Answer:
Option A is correct answer.
Explanation:
Midpoint formula is given by 
 x = 

 y = 

 Here E = (2,-4) 
so x1 = 2 and y1= -4 
 x = -6 and y = -2 are given 
therefore using above mid point formula
 -6 = 

-6X2 = 2+x2 
-12 = 2+x2 
x2 = -12-2 = -14 
Likewise 
-2 = 

-2X2 = -4 +y2
-4 = -4 +y2 
y2 = 0 
therefore Coordinate for point F will be (-14,0)