"if a consumer always buys goods rationally, thena) the total utilities of the different goods consumed will be equal. b) the average utilities of the different goods consumed will be equal. c) the marginal utility per dollar spent on all goods will be equal. d) the marginal utility of the different goods consumed will be equal."

The correct answer is option C.

Explanation:

Marginal utility is the increase in total utility due to consumption of an additional unit of good.

If a consumer is rational, he will try to maximize total utilities derived from his overall consumption.

The total utility will be maximized when the marginal utility per dollar spent on all the goods will be equal.

So, option C is the correct answer.

if you use only 25 for your entertainment and only 200 for the groceries that you really need and take out the 50 per month for the computer then that should be enough