An Ubhaya Vakra Sampurna raga is characterized by:
Having vakra (zig-zag) phrases in both the ascending scale (Arohanam) and descending scale (Avarohanam).
Being sampurna, meaning it contains all seven swaras (notes) in both ascent and descent.
Ritigoula fits this description as it has vakra movements in both arohanam and avarohanam and includes all seven swaras.
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Explanation of Other Options:
(A) Mohanam: An audava raga (uses five notes), not sampurna or vakra.
(C) Kedaragoula: Vakra only in avarohanam, not in both directions.
(D) Saveri: Audava–Sampurna raga; not vakra in both directions.
Thus, the correct answer is option (B).