The correct answer is: a) Chutiya kingdom.
The Ita Fort is a historical landmark associated with the Chutiya kingdom. It was built in the 14th century by the Chutiya king, Suhungmung. The fort is located in Itanagar, the capital of Arunachal Pradesh. It is a rectangular structure with four gates. The fort is made of stone and mud. It is a popular tourist destination.
The Ahom kingdom was a kingdom that ruled over Assam from the 13th to the 19th centuries. The Medieval period was a period of time in European history that lasted from the 5th to the 15th centuries. British colonial rule was a period of time in Indian history when India was ruled by the British from the 18th to the 20th centuries.