The correct answer is (b) Himalayan Birch.
Bhojpatra is a type of paper made from the inner bark of the Himalayan birch tree. It is a traditional writing material in the Indian subcontinent and is still used today for religious and ceremonial purposes. The paper is made by soaking the bark in water and then beating it with a wooden mallet until it is soft and pliable. It is then dried in the sun and cut into sheets. Bhojpatra is a durable paper that can withstand exposure to the elements. It is also resistant to fire and insects.
Rhododendron is a type of flowering plant that is native to the Himalayas. The plant has large, colorful flowers that are often used in landscaping. The bark of the rhododendron tree is not used to make paper.
Poplar is a type of tree that is native to North America, Europe, and Asia. The tree is often used for its wood, which is used to make furniture, paper, and other products. The bark of the poplar tree is not used to make paper.
Oak is a type of tree that is native to Europe, Asia, and North America. The tree is often used for its wood, which is used to make furniture, flooring, and other products. The bark of the oak tree is not used to make paper.