alleryConjoint, open and endarch vascular bundles arranged in a ring are diagnostic of
AA typical isobilateral leaf vein section
BA typical dicotyledonous stem cross section
CA typical monocotyledonous stem cross section
DA typical dicotyledonous root cross section
Answer & Solution
Correct answer: B. A typical dicotyledonous stem cross section
**Dicot stem:** conjoint (X and P same radius) + open (cambium present) + endarch (protoxylem internal) + ring of bundles.
This combination is unique to the dicot stem and is the textbook diagnostic image.
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