Edwin was a neglected child in his infancy. Now, at 31 years of age, he is highly cynical about the world and feels that no one can be relied upon. In relationships he is suspicious toward his partner, and these feelings eventually lead to the breakup of the relationship. According to Erikson's psychosocial theory, this indicates that Edwin did not successfully resolve the ________ stage of development, which in turn is causing him to experience ________ in his current developmental stage.