The answer is B. Kutch.
Kutch is the largest district in Gujarat, India. It is located in the northwestern part of the state, bordering Pakistan to the north. The district has a population of over 3.5 million people and an area of over 26,000 square kilometers. The capital of Kutch is Bhuj.
Kutch is a desert district with a hot and dry climate. The main occupation of the people is agriculture. The district is also home to a number of industries, including textiles, salt production, and handicrafts.
Kutch is a popular tourist destination. The district is home to a number of historical and cultural sites, including the Bhuj Fort, the Kutch Desert Wildlife Sanctuary, and the Rann of Kutch.
Option A: Ahmedabad is the largest city in Gujarat, but it is not the largest district.
Option C: Vadodara is the third largest city in Gujarat, but it is not the largest district.
Option D: None of these is the correct answer.