Answer:
C. Increasing sales revenue and operating expenses by the same dollar amount.
Step-by-step explanation:
ROI or return on Investment is the amount the which is received as a return on your capital invested. Hence the more the better for business.
For example,
The Sales revenue is $200 and the operating expenses are $100, so the net profit will be => 200-100 = $100.
Now if we increase the sales revenue and operating expenses by the same percentage let say 10%.
The NEW sales revenue will be = 200*1.1 = $220.
The NEW operating costs will be = 100*1.1 = $110.
Hence, the new profit will be = 220-110 = $110.
Therefore, increasing sales revenue and operating costs by the same percentage would increase ROI by $10.
Hope this helps.
Good Luck.