1. Which of the following is falss regarding variances? 1 A) Unfavorable variances occur whenever actual prices or actual usage of inputs are greater ou than standard prices or standard usage. B) A variance is the remaining portion after subtracting the standard cost from the actual cost C) Mathematically, a favorable variance has a negative value. D) An unfavorable variance, when it occurred, are credited to the related variance account. 2. The materials quantity (usage) variance should be computed:[ A) when materials are purchased. B) when materials are used in production. when only a portion of materials purchased is used. D) oaly when hereis a signiticant infrne erweh sr a actual price per unit for when there is a significant difference between standard and actual price per unit for the materials