Resset Co. provides the following results of April's operations: F indicates favorable and indicates unfavorable. In applying management by exception, the company investigates all variances of $6,700 or more. Direct materials price variance Direct materials quantity variance Direct labor rate variance $10,600 F 4,600 U 13,200 u Direct labor efficiency variance Controllable overhead variance Fixed overhead volume variance $6,500 F 6,700 U 6,900 F 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 for a correct answer and double click the box with the question mark to empty the box for a wrong answer.) Direct materials price variance Controllable overhead variance Direct labor rate variance Direct materials quantity variance Direct labor efficiency variance | Fixed overhead volume variance