Correct option is A
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Correct answer: (a) Pumpkin
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Pumpkin has a very deep root system compared to other vegetables, which allows it to access water from deeper soil layers.
Other options:
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(b) Onion: Onions have a relatively shallow root system.
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(c) Cabbage: Cabbages have shallow to moderate root systems.
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(d) Chilli: Chilli plants have moderate root systems but not as deep as pumpkin.