Bihar is a major producer of:

The correct answer is: a) Jute

Bihar is the largest producer of jute in India. Jute is a long, soft, and shiny fiber that is used to make a variety of products, including bags, carpets, and textiles. It is a major cash crop for the state of Bihar and employs a large number of people.

Sugarcane is also grown in Bihar, but it is not as important as jute. Tea and coffee are not grown in Bihar at all.

Here is a brief description of each option:

• Jute is a long, soft, and shiny fiber that is used to make a variety of products, including bags, carpets, and textiles. It is a major cash crop for the state of Bihar and employs a large number of people.
• Sugarcane is a tall grass that is used to make sugar. It is grown in many parts of India, including Bihar.
• Tea is a beverage that is made from the leaves of the Camellia sinensis plant. It is grown in many parts of India, but not in Bihar.
• Coffee is a beverage that is made from the beans of the Coffea plant. It is grown in many parts of India, but not in Bihar.