The correct answer is: Champaner-Pavagadh.
Champaner-Pavagadh is a UNESCO World Heritage Site located in the Indian state of Gujarat. It is a complex of historical and archaeological sites, including the ruins of the city of Champaner, which was founded in the 11th century. The site is also home to a number of Hindu and Jain temples, as well as the Pavagadh Hill, which is a popular pilgrimage site.
Ahmedabad is the largest city in Gujarat and the sixth-largest city in India. It is a major commercial and industrial center, and is home to a number of historical and cultural attractions, including the Jama Masjid, the Sabarmati Ashram, and the Gandhi Smriti.
Rani ki Vav is a stepwell located in Patan, Gujarat. 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, the wife of King Bhimdev I of the Solanki dynasty.
Dholavira is an archaeological site located in the Kutch district of Gujarat. It is a well-preserved Harappan city, and is one of the largest and most important Harappan sites outside of Pakistan. The site was occupied from the 3rd millennium BCE to the 1st millennium BCE.
In conclusion, the correct answer to the question “Which Gujarati city is a UNESCO World Heritage Site?” is Champaner-Pavagadh.