Nepali folk songs in Sikkim often feature:

The correct answer is: d) All of the above

Nepali folk songs in Sikkim often feature themes of love and longing, the sarangi (string instrument), and lively rhythmic patterns.

• Themes of love and longing are common in Nepali folk songs, as they are in many other cultures around the world. These songs often express the emotions of love, loss, and separation.
• The sarangi is a traditional string instrument that is often used in Nepali folk music. It is a bowed instrument that has a long, thin neck and a gourd body. The sarangi is capable of producing a wide range of sounds, from the mellow to the passionate.
• Lively rhythmic patterns are also common in Nepali folk music. These patterns are often created by the use of drums, cymbals, and other percussion instruments. The rhythms can be complex and intricate, and they add a great deal of energy and excitement to the music.

In addition to these three features, Nepali folk songs often also feature beautiful melodies, strong vocals, and intricate harmonies. They are a vital part of the cultural heritage of Sikkim, and they continue to be enjoyed by people of all ages.