The main feature of identification of Hariyana cow is:

The correct answer is A, long and narrow face. The Hariana is the indigenous cattle breed of the Rohtak, Hisar, Jind and Gurugram tract, a dual purpose animal that gives milk and whose bullocks were once the standard draught animal of the north western plains. Its breed description begins with the head: a long and narrow face, a flat bony forehead with a slight bulge between the horns, short horns and a compact white or light grey body with a long tail ending in a black switch.

Option B, a small and narrow face, and Option D, a short and wide face, belong to other types of cattle and not to this breed, whose head is distinctly elongated. Option C, a long and broad face, is the closest distractor because it keeps the length but changes the width, and the breed is marked by narrowness, not breadth. In the exam, pair the two Haryana animals that are asked most: the Hariana cattle with its long narrow face and the Murrah buffalo with its short tightly curled horns.