How could this be accomplished?

An app builderwants to limit the amount of fields users are required to fill out when creating a new Opportunity. Once they fill out the required fields and save, the full record page with additional fields relevant to the Opportunity type becomes available.

How could this be accomplished?
A . Make the Opportunity type a required field on the initial Opportunity page layout and use automation to fill in the type field to a record type.
B. Use different page layouts for Opportunity types based on the user profile.
C. Once the required fields are populated, use a sharing rule to share the new fields with the user.
D. Hide additional sections on the page layout and show the users how to manually expand them when
they want to fill in the fields in the hidden sections.

Answer: A