Hich of the following is one of the three key elements of systematic desensitization? A. progressive muscle relaxation B. learning to relax while forgetting about the feared stimulus C. operant conditioning in the presence of the object of fear D. constructing a hierarchy of needs

Which of the following is true of emotions? (a) a neurologically-intact baby can show at least six distinct emotions at birth. (b) the character of emotions changes as we develop cognitively. (c) basic emotions are culturally- and developmentally-based. (d) in general, adults cannot interpret infant emotions until the infants are 10 to 12 months old.