Concept: This question tests your knowledge of various plant hormones (phytohormones) and their primary physiological roles in plant growth and development.

Why (B) is correct:

• A - Auxins: Promote cell elongation, apical dominance, and initiate rooting in stem cuttings. Hence, (vii) Apical dominance is correct.
• B - Gibberellins: Promote bolting (internode elongation) in rosette plants and break seed dormancy. Hence, (vi) Bolting is correct.
• C - Cytokinins: Promote cell division and delay senescence (aging). Hence, (v) Cell division is correct.
• D - Ethylene: Is a gaseous hormone primarily involved in fruit ripening and senescence. Hence, (iv) Fruit ripening is correct.
• E - Abscisic acid (ABA): Is a stress hormone that induces dormancy, promotes abscission, and closes stomata. Hence, (iii) Stomatal closure is correct.
• F - Dormins: This is an older term for Abscisic acid (ABA), which causes dormancy. Hence, (i) Dormancy is correct.
• G - Zeatin: Is a natural cytokinin, promoting cell division. Hence, (ii) Natural cytokinin is correct.

Why other options are wrong: They incorrectly match the hormones with their functions.

NEET Tip: Create a table for each hormone, listing its primary functions, sites of synthesis, and any specific applications or unique characteristics. This helps in quick recall.

Correct Answer: (B)