The correct option is A (3,2)
Since,
5+0=5
0+5=5
The equation x+y=5 satisfies the points (5,0) and (0,5). All we have to do now is find the point that satisfies the given equation.
(4,3) does not satisfy the given equation since, 4+3=7.
(4,2) does not satisfy the given equation since, 4+2=6.
(3,4) does not satisfy the given equation since, 3+4=7.
(3,2) satisfies the given equation since, 3+2=5 and hence, it lies on the given line.