What happens during puberty for girls?

• A. Breast development; hair grows in pubic area & armpits; periods & menstruation cycle starts
• B. Hair grows in pubic area & armpits only
• C. Periods begin
• D. Breast development only

Answer: (A)

Puberty in girls involves hormones driving several changes in the body, especially those that prepare the body for reproductive capability. The best answer reflects the main puberty milestones: breast development begins (thelarche), hair starts to grow in the pubic area and under the arms (adrenarche), and menstruation starts as the reproductive system becomes active (the onset of the menstrual cycle). Each of these changes comes from different hormonal signals, with estrogen driving breast development, androgens triggering hair growth, while the menstrual cycle begins as ovulation and uterine lining changes establish a monthly cycle.

Other options miss one or more of these key changes, so they don’t describe puberty as fully.