In the following equation = 45,000 + 2x with given sales (Y in $500) and marketing (X in dollars), what does the equation imply?

In the following equation ŷ = 45,000 + 2x with given sales (Y in $500) and marketing (X in dollars), what does the equation imply?

A. An increase of $1 in marketing is associated with an increase of $46,000 in sales.

B. An increase of $1 in marketing is associated with an increase of $1,000 in sales. 

C. An increase of $2 in marketing is associated with an increase of $46,000 in sales.

D. An increase of $2 in marketing is associated with an increase of $1,000 in sales.