Within the relevant range, the variable cost per unit: remains constant as activity changes. increases as activity increases. decreases as activity increases. can increase or decrease as the activity changes.

remains constant as activity changes.

Explanation:

The Variable Cost per unit is the actual production cost that is incurred in order to produce each unit that is affected by changes in the company's output or activity level. Within the relevant range, the variable cost per unit remains constant as activity changes, even though the total dollar amount varies in accordance to the various changes in the company's activity, the variable cost will stay constant on a per unit basis.

the answer is a. $209,000

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