It is one of the characteristic sculptural elements of Assyrian culture.
Babylonian winged bulls, with head of a man, bearded and large wings, were protective and vigilant spirits of the city gates and palaces. They are generally represented with five legs so that four can be seen from any point where the observer stands.
A is the answer as proportion is the reason why art has spaces and this helps to create detail and make balance art work. it is most commonly found in portraits and negative and positive space drawings.