When two forces, each equal to P, act at 90° to each other, then the resultant will be_____________?

1) 1.0 in from the wall
2) 1.732 m from the wall
3) 1.0 m above the floor
4) 1.732 m above the floor
The correct answer is?
A. (1) and (3)
B. (1) and (4)
C. (2) and (3)
D. (2) and (4)

A. disc with larger density
B. disc with smaller density
C. both discs will have same rotational inertia
D. none of the above