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B
Angiosperms
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C
Pteridophytes
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D
All the above
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Solution
The correct option is B Angiosperms Phloem is the complex permanent tissue that contributes to the conduction of food in plants and consist of sieve cells, phloem parenchyma and phloem fiber. In angiosperms, sieve sells are evolved in sieve tubes and companion cells are the characteristic of these plants.