The correct answer is B) For every acting force there is an equal and opposite reacting force. This is the correct answer because it accurately states Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on a second object, the second object exerts an equal and opposite force back on the first. The other answer choices are incorrect because they either describe an unequal reaction force (A), a force in the opposite direction but not necessarily equal (C), or the absence of a reacting force in certain directions (D), which is not accurate according to Newton's Third Law.