A would be the correct answer. Its the only one to make sense since you are trying to solve the conflict!
Turn lights off, unplug electronics, and use solar energy
Answer:

Explanation:
Torque is defined as the cross product between the position vector ( the lever arm vector connecting the origin to the point of force application) and the force vector.

Due to the definition of cross product, the magnitude of the torque is given by:

Where
is the angle between the force and lever arm vectors. So, the length of the lever arm (r) is minimun when
is equal to one, solving for r:

To Make I the subject you need to get it by itself. To do this divide both sides by V and t:
I = E/Vt
B .Newton's first law holds that your body moves along with Earth because it is not compelled to change its motion by an unbalanced force