Answer:
a) Custom AppExchange-app for product-pricing
Explanation:
We can find a solution in AppExchange for this product-pricing, surfing in the option, we could get solutions like BoonPlus, and easy pricing Opportunity, this App has a free trial.
With this option is easy to choose a book price, add new products, select pricing rule, we can get an order's product, and calculate pricing, just we must download the app and install it.
Because it is a very fun game and if it is fun people like it
Choose Start→All Programs→Windows Virtual PC and then select Virtual Machines. Double click the new machine. Your new virtual machine will open onto your desktop. Once it's open, you can install any operating system you want.