The process of replacing a method inherited from a superclass by a more specific implementation of the method in a subclass is called:

A transaction between two parties in which the first party promises to make a payment to the second party. The second party, in turn, promises to make a simultaneous payment to the first party.

(a) swap (b) available-for-sale securities (c) spot price (d) held-to-maturity securities

Which of the following is the main reason many experts believe that relying on customers for new products, particularly true innovations, is doomed to failure?

A) Customers have limited ability to see into the future and conceptualize what could be. B) Customers would be biased and would want only inexpensive products. C) Customers don't have the time to think about new products. D) Customers might share the same new product ideas with competitors.