27. The fixed portion of the cost of electri city for a manufacturing facility is classified asa: A) B) C) D) Period cost Yes No No Yes Product Cost Yes No Yes No A) Choice A B) Choice B C) Choice C D) Choice D 28. Property taxes on a company's factory building would be classified as a(n): A) product cost B) opportunity cost. C) period cost D) variable cost. 29. Which costs will change with a decrease in activity within the relevant range? A) Total fixed costs and total variable cost. B) Unit fixed costs and total variable cost. C) Unit variable cost and unit fixed cost. D) Unit fixed cost and total fixed cost. d cost per unit will: 30. When the level of activity decreases within the relevant range, the fixe A) decrease B) increase C) remain the same D) The effect cannot be predicted