Concept:Mixed farming combines crop cultivation with livestock rearing on the same farm.
Explanation:Growing rice is a crop-based activity.
Rearing fowls is an animal-based activity.
When a farmer does both on the same farmland, it is called mixed farming.
Crop rotation means planting different crops in sequence over seasons.
Mixed cropping means growing two or more crops at the same time.
Organic farming means farming without synthetic chemicals.
Therefore, rice plus fowls is the best example of mixed farming.
Answer:B. mixed farming.