The correct answer is A. Jharkhand.
Jharia coalfield is located in the state of Jharkhand, India. It is one of the largest coalfields in India, with an estimated reserve of 2.5 billion tonnes of coal. The coalfield is located in the Damodar Valley, and is a major source of coal for the Indian power sector.
The Jharia coalfield has been in operation since the 18th century, and has a long history of mining accidents. In 1916, a fire broke out in the coalfield, which is still burning today. The fire has caused extensive damage to the coalfield, and has made it difficult to mine coal in the area.
Despite the challenges, the Jharia coalfield remains an important source of coal for India. The coalfield is expected to continue to operate for many years to come.
Here is a brief explanation of each option:
- Option A: Jharkhand is the correct answer. The Jharia coalfield is located in the state of Jharkhand, India.
- Option B: West Bengal is incorrect. The Jharia coalfield is not located in the state of West Bengal.
- Option C: Bihar is incorrect. The Jharia coalfield is not located in the state of Bihar.
- Option D: Odisha is incorrect. The Jharia coalfield is not located in the state of Odisha.