Concept:Viticulture is the scientific cultivation and harvesting of grapes.
Explanation:The term viticulture specifically means growing grapes.
Option B is correct because it directly matches this definition.
Option A – growing vegetables, flowers and fruits is called horticulture.
Option C – breeding of fish is called pisciculture.
Option D – rearing of silkworms is called sericulture.
Thus, only option B fits the definition of viticulture.
Answer:Option B: cultivation of grapes.