Which two objects can be members of a Campaign? (Choose two.)

Universal Containers has two types of customer support processes: Platinum and Diamond. The app builder created separate record types for each process on the Case object. The customer support team should not be able to create new cases with the Diamond record type.
How can this requirement be met?

When should a system administrator consider using the Salesforce AppExchange? (Choose two.)

Which two should be considered when creating unmanaged packages? (Choose two.)

Which social network is available in the Lightning Experience and Salesforce1?