The correct answer is: A. West Bengal
West Bengal is a state in eastern India. It is bordered by Nepal to the north, Sikkim, Bhutan, and Assam to the northeast, Meghalaya and Bangladesh to the east, Odisha to the south, Jharkhand to the southwest, and Bihar to the west. The state capital is Kolkata.
Jharkhand is a state in eastern India. It is bordered by West Bengal to the east, Odisha to the south, Chhattisgarh to the southwest, Madhya Pradesh to the west, and Uttar Pradesh to the northwest. The state capital is Ranchi.
Chhattisgarh is a state in central India. It is bordered by Madhya Pradesh to the north, Maharashtra to the west, Andhra Pradesh to the south, Odisha to the southeast, Jharkhand to the east, and Uttar Pradesh to the northeast. The state capital is Raipur.
Bihar is a state in eastern India. It is bordered by Nepal to the north, West Bengal to the east, Jharkhand to the south, Odisha to the southwest, and Uttar Pradesh to the west. The state capital is Patna.
Odisha is a state in eastern India. It is bordered by West Bengal to the north, Jharkhand to the northwest, Chhattisgarh to the west, Andhra Pradesh to the south, and Bay of Bengal to the east. The state capital is Bhubaneswar.
To the east of Jharkhand lies West Bengal.