Andhra Pradesh is a significant producer of:

The correct answer is: a) Cement.

Andhra Pradesh is a significant producer of cement. It is the second largest producer of cement in India, after Gujarat. The state has a number of cement plants, which produce a variety of cement products, including ordinary Portland cement, pozzolanic cement, and blended cement. The cement industry in Andhra Pradesh is a major contributor to the state’s economy, and it provides employment to a large number of people.

The other options are incorrect for the following reasons:

• Steel: Andhra Pradesh is not a significant producer of steel. The state has a few steel plants, but they produce a small amount of steel compared to other states in India.
• Chemicals: Andhra Pradesh is not a significant producer of chemicals. The state has a few chemical plants, but they produce a small amount of chemicals compared to other states in India.
• Automobiles: Andhra Pradesh is not a significant producer of automobiles. The state has a few automobile manufacturing plants, but they produce a small number of automobiles compared to other states in India.