Which of the following statements about the market structure of monopoly are correct?
a. a monopoly involves a market one or a few major firms.
b. the monopolist can charge any price she wishes and still operate at maximum profit.
c. the demand curve faced by the monopolist is the same as the total industry demand curve.
d. the monopolist is a "price taker." the monopoly is normally a huge firm such as wal-mart.

Haley photocopying purchases a paper from an out-of-state vendor. average weekly demand for paper is 150 cartons per week for which haley pays $15 per carton. in bound shipments from the vendor average 1000 cartoons with an average lead time of 3 weeks. haley operates 52 weeks per year; it carries a 4-week supply of inventory as safety stock and no anticipation inventory. the vendor has recently announced that they will be building a faculty near haley photocopying that will reduce lead time to one week. further, they will be able to reduce shipments to 200 cartons. haley believes that they will be able to reduce safety stock to a 1-week supply. what impact will these changes make to haley’s average inventory level and its average aggregated inventory value?