Lachen, a quaint village in North Sikkim, is known for its:

Tibetan Buddhist monasteries
Apple orchards
Traditional handicrafts
Hot springs

The correct answer is: a) Tibetan Buddhist monasteries.

Lachen is a village in North Sikkim, India. It is located at an altitude of 2,700 meters (8,900 feet) and is the gateway to the Zemu Glacier. The village is known for its Tibetan Buddhist monasteries, which are some of the oldest and most important in Sikkim. The most famous monastery in Lachen is the Lachen Gompa, which was founded in the 17th century. The monastery is home to a large number of monks and is a popular pilgrimage destination for Buddhists from all over the world.

The other options are incorrect because:

  • Apple orchards are not a major feature of Lachen.
  • Traditional handicrafts are produced in Lachen, but they are not as well-known as the monasteries.
  • Hot springs are located in other parts of Sikkim, but not in Lachen.