23) Midend's Camera Shop has prepared the following flexible budget for September and is in the process of interpreting the variances. F denotes a favorable variance and U denotes an unfavorable variance. Material A Material B Material C Flexible Budget $29,000 37,000 44,000 Variances Price Efficiency $1,200U $1,900F 800F 700U 1,500U 2,500F The explanation that lower-quality materials were purchased is most likely for A) Material A B) Material B C) Material C D) both Material A and C