Universal containers wants to provide a different view for its users when they access an Account record in Salesforce1 instead of the standard web version. How can this be accomplished? Choose 2 answers

Universal Containers wants to test code against a subset of production data that is under 5 GB. Additionally, Universal Containers wants to refresh this sandbox every weekend.
What type of sandbox should be used to accomplish this?

The sandbox copy engine creates an organization as part of each creation and refresh request. So, the organization ID of your sandbox changes each time your sandbox is refreshed.

Universal Containers generates leads from three different sources: web, trade shows, and partners. Some of the information collected is applicable to all sources, there is also information that is unique to each type of lead.
What should an app builder configure to meet these requirements?

UVC uses a custom object called Candidates to track information about people who are being recruited for jobs within the company. When an employee refers a recruiting candidate, that employee should have access to the Candidate record, however, only HR users should be able to view, edit, and report on the Salary field. Which action should be recommended for controlling who can view the Salary field?