The aspect of language relating to communicating effectively and appropriately with others is

Which statement is TRUE about clinical studies?

a) Most studies represent the population in terms of age but fail to accurately represent gender. b) Ethnic minority groups are adequately represented in clinical studies. c) They do not adequately represent the population in terms of age, gender, and ethnicity. d) Gender and age are overly represented in clinical studies.

Elena and Aidan are both writers and spend a great deal of time reading to their young son. This is an

example of A) a passive gene–environment correlation. B) an evocative gene–environment correlation. C) an active gene–environment correlation. D) niche-picking.