Exercise 21-1 Management by exception LO C1 Resset Co. provides the following results of April's operations: F indicates favorable and U indicates unfavorable. In applying management by exception, the company investigates all variances of $400 or more. Direct materials price variance Direct materials quantity variance $ 300 F Direct labor efficiency variance Controllable overhead variance Fixed overhead volume variance $2,200 F 400 U s00 F 3,000 U Direct labor rate variance 100 U Which variances will the company investigate? (You may select more than one answer. Single click the box with the question mark to produce a check mark fora correct answer and double click the box with the question mark to empty the box for a wrong answer.) ? Direct materials quantity variance Direct labor efficiency variance 7 Controllable overhead variance 7 Direct materials price variance ? Direct labor rate variance Fixed overhead volume variance