etrus Framing's cost formula for its supplies cost is $$1,890$ per month plus $$9$ per frame. For the month of March, the company planned for tivity of $629$ frames, but the actual level of activity was $634$ frames. The actual supplies cost for the month was $$7,860.$ The activity riance for supplies cost in March would be closest to:

Multiple Choice

$$45U$

$$309F$

$$ $$45F$