The correct answer is A. Use the Cacheable=true attribute in the Apex method.

Explanation:
In LWC, when using the @wire decorator with Apex methods, Salesforce requires the method to be cacheable if the data is only read and doesn't involve any DML operations. The cacheable=true annotation improves performance by allowing the framework to cache the data and manage refreshes.

Cacheable=true is used for methods that do not modify data (i.e., read-only operations), and adding it resolves issues with retrieving data in LWCs through wire service.