Which series of steps should a Digital Developer take to show this refinement on the storefront?

Universal Containers wants to give customers the ability to refine product search results by a product custom attribute, weightCapacity.

Which series of steps should a Digital Developer take to show this refinement on the storefront?
A . Define a sorting rule for weightCapacity, then rebuild the product search index.
B . Define a search refinement for weightCapacity, then rebuild the product search index.
C . Define search-suggestion buckets for weightCapacity, then rebuild the product search index.
D . Define a search refinement for weightCapacity, then clear the page cache segment for Search-Show.

Answer: B

Explanation:

Reference: https://documentation.b2c.commercecloud.salesforce.com/DOC1/index.jsp?topic=%2Fcom.demandware.dochelp%2FSearchandNavigation%2FConfiguringCataloglevelSearchRefinementDefinitions.html