Could you help me in solving this question, Doctor, as soon as possible, please, and thank you.

Question Which of the following statements about operating leverage is false? 15 Not yet O a. All of the given answers are true. answered O b. The degree of operating leverage is higher for companies with higher fixed costs Marked out of O c. If the degree of operating leverage higher for a company, this means that the 0.60 company is less risky than another company with low degree of operating leverage. Flag O d. Operating leverage measures how operating income will be affected by changes in question sales O e. Keeping all factors constant, the higher the contribution margin, the higher the operating leverage