The correct answer is A. Hollong.
Hollong is a tall, deciduous tree that is native to the forests of Assam, India. It is the state tree of Assam and is also known as the Assamese sal tree. The tree is an important part of the local ecosystem and is used for a variety of purposes, including timber, fuelwood, and fodder.
Neem is a large, deciduous tree that is native to India and other parts of Asia. It is a popular tree for planting in urban areas because it is tolerant of pollution and drought. The tree is also used for a variety of medicinal purposes.
Peepal is a large, deciduous tree that is native to India and other parts of Asia. It is a sacred tree in Hinduism and Buddhism and is often planted near temples and other religious sites. The tree is also used for a variety of medicinal purposes.
None of these is the correct answer because it is not a state tree of Assam.