This question checks whether we know why each named cultural operation is used and which crop that reason applies to.
- Beushaning: A puddling and cross ploughing operation done in standing water, unique to deepwater and lowland rice cultivation in eastern India, so it pairs with Rice.
- Blind hoeing: Early harrowing done before the crop comes up, used in sugarcane because the setts are slow to sprout and weeds would otherwise get a big head start, so it pairs with Sugarcane.
- Earthing up: Piling soil around the stem base, classically done in maize at the knee high stage to prevent lodging and cover nearby weeds, so it pairs with Maize.
- Intercultivation with bullocks: Bullock drawn implements working between crop rows, suited to a widely row spaced crop such as sunflower, so it pairs with Sunflower.
Putting these four pairs together gives (A)-Rice, (B)-Sugarcane, (C)-Maize, (D)-Sunflower, which is exactly option 2.
Let's summarize:
- Beushaning belongs to rice, blind hoeing to sugarcane.
- Earthing up belongs to maize, bullock intercultivation to sunflower.
So the correct option is 2.