Final answer:
Price books are useful for managing price variations by region and enable the association of one product with multiple prices.
Step-by-step explanation:
Price books are a tool used in business to manage and track pricing information for products and services. The given options about price books are as follows:
- Option A. are preferred when there are price variations for the same product by region: This is true. Price books are useful when there are different prices for the same product in different regions, allowing businesses to easily manage and update regional pricing.
- Option C. enable association of one part with multiple prices: This is true. Price books allow for the association of one product or part with multiple prices, such as bulk pricing or special discounts.
The other options, B and D, are not true about price books. They do not independently support complex price calculations and are not recommended when there is only one list price per part.