In late childhood (9 to 12 years), how much do boys typically grow in height each year?

During late childhood, which spans ages 9 to 12, boys typically experience a growth spurt that results in an average height increase of approximately 2.5 cm each year. This period is characterized by steady growth as children approach puberty, leading to more significant growth in the early adolescent years.

Considering the growth patterns, the 2.5 cm figure aligns with the general growth trends established in pediatric growth charts. It's important to note that growth rates can vary among individuals due to factors such as genetics, nutrition, and overall health. Therefore, while some may grow slightly more or less, 2.5 cm per year serves as an average measure during these formative years for boys.

Other choices represent different growth rates that are not typical for this age group in boys, making them less relevant when discussing expected growth during late childhood.