Action and reaction(i) act on two different object   (ii) have equal magnitude(iii) have opposite directions    (iv) have resultant zeroSelect an answerAi, iiBii, iiiCiii, ivDi, ii, iii, iv

The correct answer is D i, ii, iii, iv.

This is because these four options are all principles of Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

(i) Action and reaction act on two different objects: This is true because when one object exerts a force on a second object, the second object exerts a force of equal magnitude in the opposite direction on the first object.

(ii) Have equal magnitude: This is true because the forces are equal in magnitude according to Newton's third law.

(iii) Have opposite directions: This is also true because the forces are opposite in direction according to Newton's third law.

(iv) Have resultant zero: This is true because the forces cancel each other out if they are the only forces acting on the system. However, it's important to note that this doesn't mean the objects themselves have a net zero motion - that depends on what other forces are acting.