Loren Company recently purchased materials from a new supplier at a very attractive price. The materials were found to be of poor quality, and the company's laborers struggled significantly as they shaped the materials into finished product. In a desperate move to make up for some of the time lost, the Loren Company manufacturing supervisor brought in more-senior employees from another part of the plant. Which of the following variances would have a high probability of arising from both of these situations?

a. Material quantity variance un vocable
b. Laborrate variance, unvorable
c. Material price variance favorable
d. Labor efficiency variance unfavorable
e. All of the answers are correct