The body is said to be in equilibrium if all the forces and torques will become equal to

B. Zero

The correct answer is:

B. Zero

A body is considered to be in equilibrium if the sum of all the forces and torques acting on it is equal to zero. This means there’s no net force or net torque causing the body to accelerate or rotate.

Here’s why the other options are incorrect:

• A. One: The forces and torques don’t necessarily all have to be the same magnitude or direction. As long as they add up to zero vectorially (net force and torque are zero), the body is in equilibrium.
• C. Four or D. Six: These numbers might be specific requirements for certain equilibrium situations involving multiple forces/torques acting in different planes, but in general equilibrium simply requires the net force and net torque to be zero.