A
Naturally occurring wild crop varieties immune to heavy rainfall
B
Crops genetically modified to withstand broad-spectrum chemical weedkillers
C
Crops treated post-harvest with chemical preservatives to prevent rotting
D
Crops bred traditionally through mutation breeding to resist fungal blights
Correct answer: (b) Crops genetically modified to withstand broad-spectrum chemical weedkillers
Explanation
Herbicide-Tolerant Crops are specifically crops that have been genetically modified to withstand broad-spectrum chemical weedkillers without harming the crop itself. Options A, C, and D describe unrelated agricultural methods or characteristics.
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