A cone-shaped paper cup is being produced such that it holds 100 cm of liquid. The material that will be used to produce the cups cost 0.25 cents per cm2. Let the cost be a function of r and the slant height of the cup be defined as s=vr2 + h2. Which of the following equations will help determine the lowest cost? (Hint: the base of the cup would not be included, since it is open.) (1 point) O (0.25xr 2 + 90000 72 4 ) =0 O (0.25mr2 + 0.25mr 2 + 90000 72, 4 ) =0 0.25 d (mrr O 0.25- ( ar2 + mr /2 + 300 - 2) =0