The correct answer is: d) Arabian Sea.
Gujarat has a long coastline along the Arabian Sea, which makes it an ideal location for offshore wind energy development. The Arabian Sea is a relatively shallow sea, with an average depth of only 1,300 meters. This makes it easier to install and maintain offshore wind turbines. The Arabian Sea is also a relatively calm sea, with low levels of wave activity. This makes it a good location for offshore wind turbines, which are sensitive to wave motion.
The Gulf of Kutch and the Gulf of Khambhat are two other major gulfs on the coast of Gujarat. However, these gulfs are much shallower than the Arabian Sea, with average depths of only 300 and 100 meters, respectively. This makes them less suitable for offshore wind energy development. The Bay of Bengal is a major bay on the east coast of India. However, it is much further away from Gujarat than the Arabian Sea. This makes it less practical to develop offshore wind energy projects in the Bay of Bengal.
In conclusion, Gujarat has significant potential for offshore wind energy development. This is mainly along the coast of the Arabian Sea.