what is the correct answer for A, B, C, and D

Bramble Corp. has sales of $1800000, variable costs of $900000, and fixed costs of $400000. Bramble's margin of safety ratio is 56%. 44\%. 125\%. 70\%. Concord Corporation sells two types of computer hard drives. The sales mix is 30% (Q-Drive) and 70% (Q-Drive Plus) based upon quantity of units sold. Q-Drive has a unit variable cost of $120 and a selling price of $200. Q-Drive Plus has a unit variable cost of $90 and a selling price of $160. The weighted-average unit contribution margin for Concord is $73. $200. $77. $100 A company can sell all the units it can produce of either Product A or Product B but not both. Product A has a unit contribution margin of $20 and takes two machine hours to make and Product B has a unit contribution margin of $36 and takes three machine hours to make. If there are 10000 machine hours available to manufacture a product, income will be $20000 more if Product A is made. $20000 less if Product A is made. $20000 less if Product B is made. the same if either product is made. If a company sells multiple products, at any level of units sold, net income will be higher if weighted-average unit contribution margin decreases. more higher contribution margin units are sold than lower contribution margin units. more fixed expenses are incurred. more lower contribution margin units are sold than higher contribution margin units