How many low quality Crop-1 producing regions are either high quality Crop-4 producing regions or medium quality Crop-3 producing regions?
Explanation:
Regions R9, R10 and R11 produce low quality of Crop-1.
Of these, regions R10 and R11 also produce high quality of Crop-4 while regions R9 and R11 produce medium quality of Crop-3.
∴There are 3 low quality Crop-1 producing regions that are either high quality Crop-4 producing regions or medium quality Crop-3 producing regions.
Hence, option (c).
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