Submit Answer 8. [-/0.11 Points] DETAILS SCALCET9 2.7.052. The quantity (in pounds) of a gourmet ground coffee that is sold by a coffee company at a price of p dollars per pound is Q = f(p). (a) What is the meaning of the derivative f'(5)? What are its units? O The rate of change of the quantity of coffee sold with respect to the price per pound when the price is $5 per pound. The units are pounds/(dollars/pound). The price of the coffee as a function of the supply. The units are pounds. O The rate of change of the price per pound with respect to the quantity of coffee sold when the price is $5 per pound. The units are dollars/pound. O The rate of change of the price per pound with respect to the quantity of coffee sold when the price is $5 per pound. The units are pounds/(dollars/pound). The rate of change of the quantity of coffee sold with respect to the price per pound when the price is $5 per pound. The units are dollars/pound. (b) Is f'(5) positive or negative? Explain. O positive O negative