What are three characteristics of Dynamic Dashboards? (Select 3)

Lets say you have a case and it may have Parent Case. Using which relationship you can get information of all child cases in parent Case ?

JP Dela Cruz, a user with the" APAC Sales Representative" role, has been assigned the "US Sales Representative Role". Which sharing rules are recalculated?

Cloud Kicks is a large company with many divisions. Some divisions have a higher turnover, so each division wants to be able to create and manage users only within their division.
What should the administrator do to set this up?

Universal Containers has a process to allow an employee to submit a vacation request and route it to the employee's manager for approval. An employee attempted to submit a request but it could not be submitted. How could the administrator troubleshoot this?