Luke suffers from acrophobia, a fear of high places. luke's therapist suggests that his reaction to heights is a generalization of the fear triggered by a childhood playground accident in which he fell off a jungle gym. the therapist's suggestion reflects a perspective.

Which of the following was discovered in the piedmont region of north carolina in 1799?

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.