The correct answer is: B. Patan
Rani ki Vav is a stepwell located in Patan, Gujarat, India. It is one of the most well-preserved stepwells in India and is a UNESCO World Heritage Site. The stepwell was built in the 11th century by Queen Udayamati, wife of King Bhimdev I of the Chaulukya dynasty. It is a 64-meter-deep well with 103 steps leading down to the water level. The stepwell is decorated with intricate carvings and sculptures depicting Hindu deities and scenes from Indian mythology.
Kalol is a town in Gujarat, India. It is located about 100 kilometers from Ahmedabad. The town is known for its cotton mills and its production of textiles.
Dhoraji is a town in Gujarat, India. It is located about 150 kilometers from Ahmedabad. The town is known for its handicrafts and its production of textiles.
None of these is the correct answer.