Carmen’s chocolates makes two varieties of chocolate bar. a decadent dark chocolate bar contains 4 oz of cocoa powder and 3 oz of sugar, while a mellow milk chocolate bar contains 2 oz of cocoa powder and 3 oz of sugar. carmen has 120 oz of cocoa powder and 150 oz of sugar in stock. decadent dark bars sell for $6, while mellow milk bars sell for $2. what is the most money carmen can make from selling chocolate bars, if she only uses the cocoa powder and sugar she has in stock? (a) $180 (b) $300 (c) $100 (d) $140 (e) there is no maximum