With reference to the history of India, the terms "kulyavapa" and "dronavapa" denote

1. A

   measurement of land

   Measurement of land. Gupta-period kulyavapa and dronavapa are sowing-area units.

2. B

   coins of different monetary value

   Samudragupta. A king, not the term.

3. C

   classification of urban land

   Harshavardhana. Unrelated.

4. D

   religious rituals

   Krishnadeva Raya. Unrelated.

Summary. Official key is (a). Kulyavapa and dronavapa are Gupta land-measure terms — the area that could be sown with a kulya or a drona of seed — not the names of kings.