The school nurse is teaching a group of female students about the female reproductive system. A student asks how she will know she is starting puberty. Which information should the nurse discuss?

Choice A reason: The appearance of breast buds is typically the first physical sign of puberty in females, marking the onset of secondary sexual characteristics. Choice B reason: A dark line (linea nigra) along the abdomen is more commonly associated with pregnancy, not puberty. Choice C reason: While body shape changes during puberty, including increased hip circumference, this is a gradual process and not a definitive early sign. Choice D reason: Areolar darkening may occur later in puberty but is not a reliable early indicator of its onset.