If one of the variables is changed, that tells nothing about what happens to the other one, or IF anything happens, or when, or how long it lasts. Because they are UN-RELATED. You just said so yourself.
None of the choices says this.
Answer:
I don't know but I explain some of it as best as I can
Explanation:
Substances that start a chemical reaction are called reactants. Substances that are produced in the reaction are called products. Reactants and products can be elements or compounds. Bonds break in the reactants and new bonds form in the products.
To solve this problem it is necessary to address the concepts related to Torque as a function of the force and distance where it is applied and the moment of inertia from which the torque, moment of inertia and angular acceleration are related.
By definition the torque is defined as

Where,

F = Force
r = Radius
For our values we have:



Consequently the calculation of the moment of inertia would then be given by the relationship


Replacing with our values


The moment of inertia of the boxer's forearm 
the position that has least kinetic energy is option D