On average, which of these signs of puberty are most likely to occur first?

Question

Quizplus · Accepted Answer

Girls typically experience the development of breast buds as one of the first signs of puberty, usually around age 8-13. Boys usually begin to grow pubic hair and experience testicular growth around age 9-14. Girls typically begin menstruating around age 11-14, and boys may experience their first ejaculation around age 11-15. Therefore, the development of breast buds in girls is the most likely to occur first on average.

On Average, Which of These Signs of Puberty Are Most