Sohar Company has a product with a selling price per unit of OMR 200, the unit variable cost is OMR 110, and the total monthly fixed costs are OMR 300,000. How much is Sohar's contribution margin ratio? Select one: a. None of the answers are correct b. 182% O c. 150% d. 45% e. 55% If the activity level increases 10%, total variable costs will Select one: a. Increase by more than 10%. O b. Decrease by less than 10%. c. Increase 10%. d. remain the same. O e. None of the answers are correct