Don's parents suggest revisiting a vacation spot that they went to five years earlier. don recalls vividly an unpleasant experience on that vacation; he immediately refuses to go this time and insists on going somewhere else. what type of memory does don use to arrive at his strong opposition to his parent's proposition?

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk