What changes occur in boys during puberty?

During puberty, boys experience significant rapid physical and psychological changes as they mature sexually. This period is marked by the onset of secondary sexual characteristics, including increased muscle mass, deepening of the voice, growth of facial and body hair, and changes to the reproductive system.

In addition to these physical developments, puberty also brings about important psychological and emotional changes. Boys often face shifts in their identity, self-esteem, and social dynamics as they navigate the challenges of adolescence. This combination of rapid physical and psychological transformations is crucial for sexual maturity and lays the foundation for future emotional and relational development.

The complexity of these changes makes option B the most comprehensive answer, as it acknowledges both the physical growth and the psychological development that are fundamental during this stage of life.