In middle childhood a. girls are usually taller and heavier than boys because they are about 2 years ahead in physical development. b. the incidence of myopia increases. c. ear infections are more...

In middle childhood

a. girls are usually taller and heavier than boys because they are about 2 years ahead in physical development.

b. the incidence of myopia increases.

c. ear infections are more likely than they were earlier in infancy and childhood.

d. the average girl is stronger than the average boy.