When considering the impact of bullying on different groups of young people, research indicates that it can vary based on age, gender, and social dynamics. Typically, bullying is prevalent among early adolescents, and it can manifest differently across genders.
Based on the given options, both 13-year-old boys and 14-year-old girls are part of the age group most commonly affected by bullying. However, 13-year-old boys may experience more physical bullying, while 14-year-old girls might encounter relational or social bullying.
Ultimately, the impact of bullying is significant across all these groups, but the age range of 13 to 14 is generally a critical period for the onset and prevalence of bullying behaviors.