According to the Text, One of the Difficulties with Deciding

According to the text, one of the difficulties with deciding whether to administer psychosocial interventions is that

A) program efficacy tends not to be assessed.
B) agencies tend to be more interested in costs than program efficacy.
C) the full benefits of an intervention are often difficult to define and assess.
D) the costs of interventions are almost always much higher than the benefits.