Arakan Yoma is the extension of the Himalayas located in

The Arakan Yoma (also called the Rakhine or Arakan Mountains) is a mountain arc in western Myanmar. Book evidence places the Arakan Yoma on the border of Nagaland and Myanmar and describes it as part of the upland system connecting northeastern India with northern Myanmar, forming a continuation of the Myanmar mountain chain southward [1]. Encyclopedic (Britannica) description identifies the Rakhine (Arakan) Mountains as the range dividing the Rakhine coast from the Irrawaddy valley and explicitly locates the arc within Myanmar (Burma) extending northward toward Manipur in India [2]. Therefore, the correct option is Myanmar.

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 2: Physiography > 5. The Eastern Himalaya > p. 17
2. [2] https://www.britannica.com/place/Rakhine-Mountains