Sankirtana is an art form that originated in Manipur, making option 'D' the correct answer.

The Origin of Sankirtana
Sankirtana is a traditional performing art form that emerged in Manipur, a state in northeastern India. It has its roots in the Vaishnavite tradition and is closely associated with the worship of Lord Krishna.

Meaning and Significance
The term "Sankirtana" is derived from the Sanskrit words "sam" (together) and "kirtana" (singing the praises of God). It refers to a collective singing and dancing performance that involves the narration of devotional stories from Hindu mythology.

Performance and Musical Elements
Sankirtana is typically performed in a circular formation, with the performers playing musical instruments and singing devotional songs in praise of Lord Krishna. The musical instruments used during the performance include the mridanga (a percussion instrument), kartal (cymbals), and harmonium.

The songs sung during Sankirtana are composed in classical Manipuri language and follow a specific rhythmic pattern. The performers engage in rhythmic footwork and hand gestures, known as mudras, which add grace and beauty to the performance.

Themes and Costumes
Sankirtana performances often depict episodes from the life of Lord Krishna, such as his childhood antics, his interactions with Radha and other gopis (cowherd girls), and his divine plays in Vrindavan. The performers don colorful traditional Manipuri costumes, which include dhotis, turbans, and long cloaks with intricate designs.

Ritual and Devotional Aspect
Sankirtana is not just a form of artistic expression but also a religious practice. It is often performed as part of religious ceremonies and festivals, especially during Krishna Janmashtami, the birth anniversary of Lord Krishna. The performance is considered a form of worship and is believed to invoke the presence of the divine.

Preservation and Promotion
Efforts have been made to preserve and promote the art of Sankirtana. Various cultural organizations, both government and non-governmental, organize workshops, training programs, and performances to encourage the practice of Sankirtana. Additionally, Sankirtana has gained recognition beyond Manipur and is now performed in other parts of India and even abroad.

In conclusion, Sankirtana is an art form that originated in Manipur and is closely associated with the worship of Lord Krishna. It is a devotional singing and dancing performance, featuring traditional music, costumes, and themes from Hindu mythology.