Peixoto Framing Shops cost formula for its supplies cost is $1,100 per month plus $14 per frame. For the month of July, the company planned for activity of 500 frames, but the actual level of activity was 550 frames. The actual supplies cost for the month was $8,190. What was Peixotos volume variance for July with respect to its supplies cost? Select one: a. $ 90 U b. $ 90 F c. $ 190 U d. $ 190 F e. $ 610 U f. $ 610 F g. $ 700 U h. $ 700 F i. $ 720 U j. $ 720 F k. $ 0