in 45 sa foxed cost; bis a variable cost. During the current year the level of activity has decreased but is still waitin tertentreme Wie weitere a. The cost per unit of (a) has decreased. b. The cost per unit of (a) has remained unchanged. c. The cost per unit of (b) has decreased. d. The cost per unit of (b) has remained unchanged Moving to another question will save this response. MacBook Pro