The correct answer is: A. goat, pig and sheep.
Goat, pig and sheep are the most important livestock of Jharkhand. Goats are the most common livestock in Jharkhand, followed by pigs and sheep. Goats are raised for their meat, milk, and hides. Pigs are raised for their meat and fat. Sheep are raised for their meat, wool, and milk.
Goats are hardy animals that can survive in a variety of climates. They are also relatively inexpensive to raise. Pigs are also hardy animals that can survive in a variety of climates. They are not as inexpensive to raise as goats, but they are more efficient at converting feed into meat. Sheep are less hardy than goats and pigs, but they are more efficient at converting feed into wool.
Goat, pig and sheep are important sources of food and income for the people of Jharkhand. They are also important for the environment, as they help to control pests and weeds.
Option B is incorrect because buffalo are not as common as goats, pigs, and sheep in Jharkhand. Option C is incorrect because camels are not raised for their meat, milk, or hides in Jharkhand. Option D is incorrect because goats, pigs, and sheep are the most important livestock of Jharkhand.