Answer:
<h2>
B. groceries.</h2>
Step-by-step explanation:
Variable expenses refer to those expense which variate month by month.
For example, utility bill, groceries, clothing and fuel are variable expenses, because they are not the same each month.
On the other hand, rent, car loan payment and savings account are not variable expenses, because they don't change each month.
So, among the choices, the one that is a variable expense is B. groceries, because the amount of money changes.