According to your text, patients with medically unexplained symptoms make up _____% of all primary-care physicians' appointments

In regard to race,

A) has no effect on clique membership. B) racial mix in cliques largely reflect the racial mixtures of schools. C) cliques are likely to be very heterogeneous and include members from many different races. D) segregation according to race is substantial even in schools that are quite heterogeneous in terms of racial composition.

From the last year of elementary school to the first year of middle or junior high school,

A) achievement scores go down. B) interest in school goes down. C) school-related anxiety goes up. D) All of the above.