A unique feature of Meghalaya’s forests, considered sacred by local communities, are:

Sacred groves
Bamboo forests
Mangrove forests
Commercial plantations

The correct answer is: a) Sacred groves.

Sacred groves are a unique feature of Meghalaya’s forests. They are areas of forest that are considered sacred by local communities and are therefore protected from logging and other human activities. Sacred groves are home to a variety of plant and animal species, and they play an important role in the local ecosystem.

Bamboo forests are also found in Meghalaya, but they are not considered sacred. Bamboo is an important part of the local economy, and it is used to make a variety of products, including furniture, baskets, and paper.

Mangrove forests are found along the coast of Meghalaya, but they are not as common as sacred groves or bamboo forests. Mangrove forests are important for protecting the coast from erosion and flooding, and they are also home to a variety of marine life.

Commercial plantations are not a unique feature of Meghalaya’s forests. They are found in many parts of the world, and they are often used to grow crops such as tea, coffee, and rubber. Commercial plantations can have a negative impact on the environment, as they often involve clearing large areas of forest to make way for crops.

In conclusion, the correct answer to the question “A unique feature of Meghalaya’s forests, considered sacred by local communities, are:” is a) Sacred groves.