The revenue, in thousands of dollars, that a company earns selling lawnmowers can be modeled by r(m)=90m−2, and the company's total profit, in thousands of dollars, after selling x lawnmowers can be modeled by p(x)=−2x²−302x−200. Which function represents the company's cost, in thousands of dollars, for producing lawnmowers? (Recall that profit equals revenue minus cost.)
A) c(x)=−2x²−392x+200
B) c(x)=−2x²+392x+200
C) c(x)=90x+2
D) c(x)=−90x−2