Traditional industries in Bihar include:

Food processing
Textiles and handicrafts
Sugar production
All of the above

The correct answer is: d) All of the above.

Bihar is a state in eastern India. It is the third-largest state in India by population, after Uttar Pradesh and Maharashtra. The state has a rich history and culture, and is home to a number of traditional industries.

Food processing is one of the most important traditional industries in Bihar. The state is home to a number of food processing factories, which produce a variety of products, including rice, wheat, sugar, milk, and meat.

Textiles and handicrafts are also important traditional industries in Bihar. The state is home to a number of textile mills, which produce a variety of fabrics, including cotton, silk, and wool. The state is also home to a number of handicrafts industries, which produce a variety of products, including carpets, pottery, and jewelry.

Sugar production is another important traditional industry in Bihar. The state is home to a number of sugar mills, which produce sugar from sugarcane.

All of these industries play an important role in the economy of Bihar. They provide employment to a large number of people, and they contribute to the state’s exports.