A body is in equilibrium under the influence of a number of forces. Each force has a different line of action. The minimum number of forces required is

Select all that apply

• Option A

  2, if their lines of action pass through the centre of mass of the body.

• Option B

  3, if their lines of action are not parallel.

• Option C

  3, if their lines of action are parallel.

• Option D

  4, if their lines of action are parallel and all the forces have the same magnitude.