In a Standard Cost System,the Volume Variance Will Be Unfavorable

In a standard cost system,the volume variance will be unfavorable when:

A) actual hours are greater than the denominator hours.
B) the standard hours allowed for the output of the period are less than the denominator hours.
C) the standard hours allowed for the output of the period are greater than the actual hours incurred.
D) actual hours are less than the denominator hours.