The assertion that increases in government spending and decreases in taxes are largely offset by increases in savings is called:

A consumer maximizes total utility from a given amount of income when the?A:marginal utility obtained from the last dollar spent on each good is the same 
B:MU of the last unit of each good is the same 
C:total utility obtained from each product is the same 
D:Amount spend for each product is the same

In this question A and B are essentially the same so which do you think is correct or can you choose both?