Final answer:
The selection's pattern of organization is comparison and/or contrast, detailing the differences between early and late maturing boys.
Step-by-step explanation:
The pattern of organization of the selection provided is c. comparison and/or contrast. Throughout the passage, the author contrasts the experiences of boys who mature early with those who mature later. Early maturers are depicted as having advantages such as greater popularity and better performance in sports whereas late maturers feel inadequate due to their underdeveloped physiques and lower social standing. This comparison is further emphasized when discussing how both sets of individuals are perceived by peers and how they engage in activities like sports.