Correctly matching menstrual cycle hormones to functions

Steps:

• Identify FSH role: stimulates follicle development in ovaries.
• Identify LH role: triggers ovulation, releasing the egg.
• Identify oestrogen role: thickens uterine lining for implantation.
• Identify progesterone role: maintains and repairs uterine lining after menstruation.

Why B is correct:

• B pairs FSH with follicle stimulation, LH with egg release, oestrogen with lining thickening, and progesterone with post-menstrual lining repair, aligning with standard endocrine definitions in reproductive physiology.

Why the others are wrong:

• A: Incorrectly assigns FSH to egg release (LH's function) and oestrogen to follicle stimulation (FSH's function).
• C: Misplaces LH with lining thickening (oestrogen's role) and omits clear egg release pairing.
• D: Errors in FSH (egg release instead of follicle) and lacks precise oestrogen-lining match.

Final answer: B