0 Stamburger's sells three cheeseburgers for every four regular hamburgers. A cheeseburger sols for $3.75 with a variable cost of $2.50. A regular hamburger sells for $3.50 with a variable cost of $1.25. What is the weighted average contribution margin? (Round the final answer to the nearest cont.) O A $3.64 OB $12.75 C. $1.82 OD $1.76 Click to select your