Production estimates for August are as follows: For each unit produced, the direct materials requirements are as follows: The number of pounds of materials A and B required for August production is: a. 216,000 lbs. of A; 36,000 lbs. of B b. 225,000 lbs. of A; 37,500 lbs. of B c. 216,000 lbs. of A; 72,000 lbs. of B d. 234,000 lbs. of A; 39,000 lbs. of B