Indicate the best definition of marginal utility. Economists define marginal utility as The extra happiness gained by consuming one more unit of a good. The utility per unit of a good consumed. The total utility from all units consumed. The extra utility gained from consuming one more unit of a good.

January 29: Recorded the month's sales of 51,650,000 (Excludes PST and GST), 90 percent on credit and to percent for cash Sales amounts are sutipct bo spercent PST and 5 -percent GST (Round all answers to the nearest whole dellar.)