B. Develop three block layouts using the SLP. Assume that total available space is 100*100 and required spaces for the departments are 1000 (A), 2000 (B), 2000 (C), and 5000 (D). c. Compute the distance-based objective values for the three layouts. d. Compute the adjacency-based objective values for the three layouts

Your question asks what part of income should someone take savings from.

The reason why answer choice "C. what otherwise would be discretionary income" is the correct answer because this is the part of income where someone should take savings from.

Discretionary income refers to the amount of money that someone has after paying mandatory charges, items that are necessary, etc. This is referring to things like taxes, food, etc.

After someone is done paying all of the mandatory stuff, then they would see how much money they have left over in their account, and that part of the income should go into their savings account, since they wouldn't have to worry about taking it out since they already payed their important expenses.

Taking savings from your discretionary income is highly recommended so you don't have to worry about not having enough money to pay the stuff that you have to pay, due to the fact that you mostly don't want to touch your savings account, meaning that as soon as you add money in it, you would just leave it. Therefore, you would just pay off all your expenses then put the money in your savings account in order to not deal with withdrawals from the savings account.