Respuesta :
2+ years late of an answer, but the answer is a. height :)
Adolescence is a time for growth spurts and puberty changes. The shape, height and strength of teens' bodies changes dramatically in this period. The first stage of adolescent growth is height. Correct answer: A
Height increases in stage two of puberty, which is approximately between the ages of eight and fourteen for girls and approximately between ages nine to 15 for boys.