Someone who is not a "morning person" is often heard saying, "I'm cranky until I've had a cup of coffee." After that first cup of coffee (and a mood improvement), the person experiences the uncommon phenomenon of ________. That is, of course, until the stress of a typical day takes its toll. Question 6 options: a) rare utility b) increasing marginal utility c) constant marginal utility d) rebounding utility e) decreasing marginal utility