Horticulture, the branch of plant agriculture dealing with garden crops, generally fruits, vegetables, and ornamental plants.
Sericulture produces raw silk through raising caterpillars (larvae), particularly those of the domesticated silkworm (Bombyx mori).
Fish farming or pisciculture involves commercial breeding of fish, usually for food, in fish tanks or artificial enclosures such as fish ponds.
Viticulture is the broad term encompassing the cultivation, protection, and harvest of grapes where the operations are outdoors.
So, the correct answer is option A.