The correct answer is: Arabian Sea.
Gujarat is a state on the west coast of India. It is bordered by the Arabian Sea to the west, Rajasthan to the north, Madhya Pradesh to the east, and Maharashtra to the south. The state has a coastline of about 1,200 kilometers.
The Arabian Sea is a marginal sea of the Indian Ocean, extending northward from the Gulf of Aden to the Gulf of Oman and lying between India to the east and the Arabian Peninsula to the west. It is the largest marginal sea of the Indian Ocean, covering an area of about 3.8 million square kilometers.
The Bay of Bengal is an extension of the Indian Ocean located between India to the west, Bangladesh and Myanmar to the north, Thailand and Malaysia to the east, and the Andaman and Nicobar Islands to the south. It is the largest bay in the world, covering an area of about 2.1 million square kilometers.
The Indian Ocean is the third largest ocean in the world, covering an area of about 70 million square kilometers. It is located between Africa to the west, Asia to the north, Australia to the east, and Antarctica to the south.
None of the above is not a correct answer.