Universal Containers (UC) is implementing Sales Cloud. During the final quarter of the financial year, sales managers help each other close deals. They requested a solution in Salesforce to allow them to share opportunities with other sales managers from different teams as needed. They also requested that sharing deals should expire automatically two weeks after the new fiscal year starts.
Which two options to propose a solution to meet the requirements? Choose 2 answers

A user at Get Cloudy Consulting needs to share a Report or Dashboard folder with other users in the Organization?
Which two actions can be taken to achieve this goal? (Choose two.)

After setting up Customer Community and enable collaboration, the architect realizes that customers are only Chatter posts from other customers in their account.
What should the architect do to allow viewing chatter posts from all customers?

A manager at Ursa Major Solar wants to validate sharing and visibility changes.
What is the recommended approach?

Universal Containers (UC) delivers training and courses to students and companies. UC is implementing a Salesforce Customer Community for its students granting them a Customer Community license. As part of the community requirements, UC asked to give students access to cases that are related to their account in the UC community.
What is the optimum sharing technique that can achieve the requirements?