The correct answer is: Bihar Museum.
The Didarganj Yakshi is a sandstone sculpture of a female figure that was discovered in Didarganj, Patna, Bihar, India in 1917. It is a masterpiece of Mauryan art and is considered to be one of the finest examples of Indian sculpture. The sculpture is 2.6 meters (8.5 feet) tall and depicts a nude woman standing with her weight on one leg. She has a full figure and is adorned with jewelry and a headdress. The sculpture is in excellent condition and is considered to be one of the most important works of art in India.
The Didarganj Yakshi is currently housed in the Bihar Museum in Patna, India. The museum was founded in 1917 and is home to a collection of over 20,000 objects, including sculptures, paintings, and artifacts from the Indus Valley Civilization to the present day. The museum is open to the public and admission is free.
The other options are incorrect because the Didarganj Yakshi is not housed in those museums. The National Museum in Delhi is home to a collection of over 2 million objects from all over India. The Indian Museum in Kolkata is home to a collection of over 100,000 objects from all over India and Southeast Asia. The British Museum in London is home to a collection of over 8 million objects from all over the world.