Suppose you buy clothes at mimi's clothing shop. your spending is mimi's 1) costs 2)expenses 3)income

If you're giving it to Mimi, then it would be income. To you its expenses or cost, but to Mimi, it is income because she is profiting off of your money.

Mimi's income                                                                                                                                                                                                                         

The answer is c. good luck : )