Final Answer:
The young girl is in Tanner stage 2.
Step-by-step explanation:
Tanner staging is a method used to assess the sexual development and maturation of children and adolescents. It consists of five stages, ranging from prepubertal (stage 1) to full sexual maturity (stage 5). Each stage is characterized by specific physical changes.
In this case, the presence of small but developed breasts and a small amount of dark, straight pubic hair indicates that the girl is in Tanner stage 2. Stage 2 represents the early signs of puberty in females, typically occurring around ages 8-13. Along with breast development and pubic hair growth, girls in this stage may also experience some growth spurt and the start of menstruation is not far away.
It is important to note that Tanner staging is just one aspect of assessing sexual development and should be considered alongside other factors such as age, height, weight, and overall physical development to get a comprehensive understanding of an individual’s maturation process.
In conclusion, based on the description provided, the young girl is in Tanner stage 2, which signifies the early stages of puberty in females.