142673/take Question 2 2. All other things equal, which of the following would lead to high variability in a company's Operating Income (EBIT)? O a. a large amount of fixed interest expenses O b. a large amount of fixed operating expenses O c. a large amount of variable operating expenses O d. both a and Question 3 3. Assuming there is a progressive tax system, an individual's average tax rate O a. is equal to taxes paid divided by taxable income. O b. usually decreases as taxable income increases O c. is the tax rate applicable to the last dollar of income. O d. is always higher than the marginal tax rate