Correct answer A.
Because this price book is for an specific partner JoseM. You need to use others prices with him.

A answer is correct
explanation :

To configure discounted prices for reseller partners in Salesforce, an administrator should follow these steps:

Create a new price book: A price book contains a list of products and their prices. Create a new price book for the reseller partners and set the prices to the discounted amount.

Create a new price book entry: After creating the new price book, add a new price book entry for each product. The price book entry should include the discounted price for the reseller partners.

Create a new price rule: A price rule is used to apply the price book to specific accounts, opportunities, or products. Create a new price rule that applies the reseller price book to accounts that are designated as reseller partners.

Set up a discount schedule: A discount schedule specifies the discount percentage that should be applied based on the number of products purchased. Set up a discount schedule for the reseller partners to provide additional discounts for bulk purchases.

Test and verify the configuration: Test the configuration by creating a test account for a reseller partner and verifying that the correct discounted prices are applied to the products they purchase.

By following these steps, an administrator can configure discounted prices for reseller partners in Salesforce, which can help to increase sales and build strong relationships with partners....

Can someone indicate why the b is not correct?