Jon enjoys fishing (which costs $20) and golf (which costs $30). last month, jon fished four times and golfed twice. the last fishing outing provided jon a marginal utility of 50, and the last round of golf provided a marginal utility of 120. did jon maximize his utility according to the utility maximization rule?

a) yes, jon's utility is maximized.
b) no, the marginal utility per dollar from fishing was higher than that for golf.
c) no, the marginal utility per dollar from golf was higher than that for fishing.
d) no, jon should have spent less time on both activities.