sclerenchyma and collenchyma
collenchyma and xylem
Sclerenchyma and parenchyma
parenchyma and collenchyma
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The cortex of a herbaceous stem is mainly made of soft supportive and storage tissues.
The cortex is mainly:
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A. sclerenchyma and collenchyma
Sclerenchyma = very hard, lignified tissue (not typical cortex main component)
B. collenchyma and xylem
Xylem is a vascular tissue, not cortex
C. sclerenchyma and parenchyma
Sclerenchyma is not the main cortex tissue in herbaceous stems
D. parenchyma and collenchyma (Correct)
Parenchyma ā storage + basic cortex bulk
Collenchyma ā flexible support 
This is the correct cortex composition in herbaceous stems
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