Which produces the largest torque?

Question

--->> 30.0 N perpendicular to the center of rotation at a radius of 1.5 m

30.0 N perpendicular to the center of rotation at a radius of 0.25 m

60.0 N perpendicular to the center of rotation at a radius of 1.0 m

60.0 N perpendicular to the center of rotation at a radius of 0.5 m

Answer 1

Huh?
30 * 1.5 = 45
BUT
60 * 1 = 60

Answer 2

ohh..that was a terrible mistake I just did

Answer 3

So what is the answer.