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In a ring girdled plant
A
The shoot dies first
B
The root dies first
C
The shoot and root die together
D
Neither root nor shoot will die
Detailed Solution
Ring girdling removes a complete ring of bark, which includes the phloem.
Sugars can no longer be translocated down to the roots, so the roots die first.
Sugars can no longer be translocated down to the roots, so the roots die first.