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

Question On the cost-volume-profit graph, which of the following would result into an increase in the 25 breakeven point (Assuming other factors remain unchanged)? Not yet answered O a. Decrease in variable cost per unit Marked out of O b. Decrease in fixed costs 0.60 O c. None of the given answers Flag O d. Decrease in selling price per unit question O e. Increase in number of units sold