Gina’s parents are extremely concerned about her well-being, and as a result they do almost everything for her. By contrast, Sara’s parents make sure that she does a lot of things on her own. Between the two of them, ______________ may be less susceptible to the development of a phobia, insofar as a history of being able to ______________ important events in one’s environment may (reduce/increase) ______________ one’s susceptibility to acquiring a phobia.