Mineral oil and natural gas are important mineral resources found in Gujarat. Where are their major reserves located?

The correct answer is: a) Gulf of Khambhat region.

The Gulf of Khambhat is a shallow, semi-enclosed bay on the west coast of India, between the states of Gujarat and Maharashtra. It is a major oil and natural gas producing region, with the largest reserves located in the Cambay basin. The Cambay basin is a sedimentary basin that covers an area of about 20,000 square kilometers in the Gulf of Khambhat. It is a major source of oil and natural gas in India, and has been producing hydrocarbons since the 1950s.

The other options are incorrect because:

• The Kutch region is a desert region in the northwestern part of Gujarat. It does not have any major oil or natural gas reserves.
• The Sabarmati basin is a river basin in the northern part of Gujarat. It does have some oil and natural gas reserves, but they are not as significant as those in the Gulf of Khambhat.
• The Saurashtra region is a peninsula in the western part of Gujarat. It does not have any major oil or natural gas reserves.