Step 1: Concept
A Kriti is the most highly evolved and dominant compositional form in modern Carnatic music. Its structure is divided into primary functional components (angas) and optional aesthetic embellishments (decorative angas).
Step 2: Primary Angas
The essential structural parts of a standard Kriti are:
1. Pallavi (the first thematic section/chorus).
2. Anupallavi (the second section, usually covering higher octaves).
3. Charanam (the final, longest stanza combining melodic features of both).
These are structural necessities, not decorative additions.
Step 3: Decorative Angas
Decorative angas are optional, pre-composed ornaments added by composers to enhance the beauty of a composition. These include:
- Swarasahitya: A passage of solfa syllables (swaras) with an exactly corresponding passage of lyrics (sahitya) of identical rhythmic duration, rendered at the end of the Anupallavi or Charanam.
- Chittaswaram: Pre-composed swara passages.
- Madhyamakala Sahitya: A fast-tempo lyrical line.
Step 4: Conclusion
Among the choices, Swarasahitya is the only decorative anga, matching option (B).
Final Answer: (B)