Answer the questions...no need detail explanation

Question 1

Under a standard cost system, the materials price variances are usually the responsibility of the: Select one: a. engineering manager. b. purchasing manager. c. sales manager. do production manager.An unfavorable materials quantity variance indicates that: Select one: O a. standard material allowed for output exceeds the actual usage of material. O b. actual material price exceeds standard price. c. actual usage of material exceeds the standard material allowed for output. O d. standard material price exceeds actual price.A favorable materials price variance coupled with an unfavorable material usage variance would MOST likely result from: Select one: a. changes in the product mix. b. problems with processing machines. O c. problems with labor efficiency. O d. the purchase of low quality materials