Correct option is C
Trishna is a variety of Palmarosa (Cymbopogon martinii).
It is known for its straw yellow clumps, long compact inflorescence, and profuse tillering.
The essential oil extracted from Trishna contains 93% geraniol, which is widely used in aromatherapy, perfumes, and cosmetics.
It is a high-yielding variety with economic importance in the essential oil industry.