The answer is this:
A. (6,3)
The slope of the line between the points On the line would be -1. And the y intercept would be 1.
Y = -x + 1.
If the length is 7/6 the width w then the perimeter is w + (7/6)w + w + (7/6w)
= 2((7/6)w + w) = 2w + (14/6)w = (26/6)w = (13/3)w.
So the answer is the last one.