Peak growth velocity in adolescent girl is indicated by –: (A) Breast enlargment, (B) Axillary hair, (C) Public hair, (D) Just before commensement of menarche
Answer is D. Mensus typically appears around the peak in height velocity -Nelson
Menarche usually occurs after peak velocity has been attained and as the growth rate begins to decline.
Remember:

Growth acceleration begins in early adolescence, but peak growth velocities are not reached until middle adolescence.