The dhol is a prominent instrument used to accompany:

Bihu songs
Ojapali
Borgeets
Kamrupi Lokgeet

The correct answer is: a) Bihu songs.

The dhol is a double-headed drum that is used in a variety of Indian folk music genres, including Bihu songs. Bihu songs are a type of folk music that is popular in the Indian state of Assam. They are typically sung during the Bihu festival, which is a major festival in Assam. Bihu songs are often about love, nature, and the harvest.

The dhol is a very important instrument in Bihu music. It is used to set the rhythm for the songs and to provide accompaniment for the singers. The dhol is played with two sticks, one in each hand. The player strikes the drumheads with the sticks in a variety of patterns to create the rhythm.

The dhol is a very versatile instrument. It can be used to play a variety of different rhythms, and it can be used to accompany a variety of different types of music. It is an essential instrument in Bihu music, and it is an important part of Assamese culture.

The other options are incorrect because they are not types of music that are typically accompanied by the dhol. Ojapali is a type of folk music that is popular in the Indian state of Odisha. Borgeets are a type of devotional music that is popular in the Indian state of Bengal. Kamrupi Lokgeet are a type of folk music that is popular in the Indian state of Assam.