Which of the Following Correctly Demonstrates the Comparison of the Four-Variance

Which of the following correctly demonstrates the comparison of the four-variance method of factory overhead analysis to the two-variance method of factory overhead analysis?

A) The sum of the fixed and variable spending and variable efficiency variances in the four-variance method is equal to the production-volume variance in the two-variance method.
B) The sum of the fixed production-volume and variable efficiency variances in the four-variance method is equal to the production-volume variance in the two-variance method.
C) The fixed production-volume variance in the four-variance method is equal to the production-volume variance in the two-variance method.
D) The sum of the fixed spending and fixed production-volume variances in the four-variance method is equal to the production-volume variance in the two-variance method.