A customer, age 69, has never invested in securities. She is retired with no dependents, living on a fixed pension of $35,000 per year. She has a savings account with $160,000 and her home is fully paid. She desires to supplement her retirement incom, assuming minimal riskA. variable annuity contractB. CMO planned amortization class trancheC. SPDRD. income (adjustment) bond

What is the difference between total utility and marginal utility? a. marginal utility is subject to the law of diminishing marginal utility while total utility is not. b. total utility represents the consumer optimum while marginal utility gives the total utility per dollar spent on the last unit. c. total utility is the total amount of satisfaction derived from consuming a certain amount of a good while marginal utility is the additional satisfaction gained from consuming an additional unit of the good. d. marginal utility represents the consumer optimum while total utility gives the total utility per dollar spent on the last unit.