Final Answer:
The information from a CRM account field on the lead detail page is found under the "Company information" tab, making option A the correct choice.
Step-by-step explanation:
In Salesforce CRM, the lead detail page organizes information into various tabs for easy navigation. When looking for details from a CRM account field associated with a lead, the relevant information is generally located under the "Company information" tab.
This tab consolidates data related to the lead's associated account, providing a comprehensive view of the company's details. Options B, C, and D ("SFDC custom fields," "Lead information," and "Opportunity information") are not specifically designated for CRM account field details on the lead page.
Option A is the answer.