Use the information below for july production to answer the question that follow. production estimates for july are as follows: estimated inventory (units), july 1 8,500 desired inventory (units), july 31 10,500 expected sales volume (units), july 76,000 for each unit produced, the direct materials requirements are as follows: direct material a ($5 per lb.) 3 lb. direct material b ($18 per lb.) ½ lb. the number of pounds of material a and material b required for july production is a.225,000 lb. of a; 37,500 lb. of b b.234,000 lb. of a; 39,000 lb. of b c.216,000 lb. of a; 72,000 lb. of b d.216,000 lb. of a; 36,000 lb. of b