Which of the following actions will not automatically increase return on investment? a. Reducing variable selling and administrative expenses by 14% b. Selling $100,000 in unused assets at book value...

a. Reducing variable selling and administrative expenses by 14%

b. Selling $100,000 in unused assets at book value

c. Selling 20,000 additional units at a profit

d. Purchasing a $100,000 piece of equipment on sale for $75,000