The correct answer is: a) Pena songs.
Pena songs are a type of Manipuri folk song that often involves call-and-response between singers. The pena is a traditional Manipuri string instrument that is used to accompany these songs. Pena songs are often about love, loss, and nature.
Lai Haraoba songs are another type of Manipuri folk song, but they do not typically involve call-and-response between singers. Lai Haraoba songs are used in the Lai Haraoba festival, which is a religious festival that celebrates the Manipuri gods and goddesses.
Khubak Ishei is a type of Manipuri folk song that is sung by women. It is a lullaby that is sung to babies.
Nupi Pala is a type of Manipuri folk song that is sung by men. It is a song about war and heroism.
I hope this helps! Let me know if you have any other questions.