RDMflics is contemplating to reduce the rental fee from $4.00 per DVD per day to $3.80 per DVD per day. Market survey shows the average number of customers per day requesting the All My Ninja Children DVD increases to 8. Suppose customers are willing to wait if all copies of the movie are rented out. If we round up to the nearest dollar, what is the change in daily rental sales? a. It is $3 more after the fee reduction. b. It is $3 less after the fee reduction. c. It is $6 more after the fee reduction. d. It is $6 less after the fee reduction. e. The revenue is unchanged.