Im not sure what it is but my best bet would be on A because the rest of them all say greater than 0 and you are trying to find the least.
Weight is another term for the force from mass multiplied by acceleration due to gravity, the equation being expressed as

, being force, mass, and acceleration respectively.
We already have 2 parts of the equation,
Acceleration due to gravity on the planet is

Plug it into the equation


x

Weight or force from gravity is 60N.
Answer:
k = -2
Step-by-step explanation:
If 
Then

So

From this follows k = -2