Which of the following statements is true? Multiple Choice variable expense will equal zero when the planned level of activity equals the actual level of The activity variance for activity. The activity variance for a variable expense can be favorable or unfavorable depending on whether the actual expense incurred is greater than or less than the expense allowed for the actual level of activity. O O The activity variance for a variable expense can be favorable or unfavorable depending on whether the actual expense incurred is greater than or less than the planned expense. less than the planned level The activity variance for a variable expense will be unfavorable if the actual level of activity of activity