The following report is given for a blood bank, which collects donated blood to help needy ents. The company will investigate variances for two of the following items. Which two should be investigated? Actual Budget I. Medical Supplies$1,040 $%1,000 2,000 3,000 1,200 I. Blood Tests II. Administration V. Equipment 1,580 3,300 1,480 A. I and II B. II and III C. Il and IV D. III and IV