Which two options provide implicit record access to users? Choose 2 answers

Cosmic Financial Solutions would like to store each customer's social security number on the customer's account record. The number should always be masked unless a user has the permission to view it. Only a few users should be given the permission to view this data. Which of the following can be used to meet this requirement?Choose 1 answer.

Universal Containers has a custom Job object with a private sharing model. Based on the size and location of the Job, different teams must have access to edit the specific Job record. To support this requirement, Apex Managed Sharing has been implemented to share records with the required users. Since the teams change frequently, managed sharing recalculations need to be manually run frequently. What can the Architect do to optimize this process?

Universal Containers (UC) has created a custom Invoice object. Standard sales users at UC can see the records in search layout, but when they click to view the detail, only record name, created date, and last modified date are shown. When the system admin accesses it, he or she sees the full record detail with many more data fields.
What is the likely cause of this issue?

Universal Containers is designing a new community using the Customer Community license type. They would like to have the users complete survey questions through the community interface and store the responses in a Custom Object that has a lookup to the account object. Any internal user who has access to the account should be able to see all survey responses. All Customer Community users should be able to see surveys filled in by other users for their company, but not surveys for other companies. What are the correct security settings to achieve this?