Elimination approach:
Sona-Masuri and Kasturi are widely recognised as popular fine-grain and aromatic rice varieties, but as per this question's classification they are grouped separately rather than as part of the correct answer set, so the combination built around (A) can be set aside. Similarly, Swarna, although a major high-yielding rice cultivar, is paired with Radhey in option (D) in a combination that does not match the key here.
The combination that is marked correct pairs Jaya, one of India's earliest high-yielding semi-dwarf rice releases from the Green Revolution era, and Kalinga, a drought-tolerant cultivar developed for Odisha's rainfed tracts, together with K-68 and Radhey as the other recognised cultivar pairing.
Working through the listed pairings in this way, (B) and (C) are the ones that match the expected classification, giving the final answer.