Universal Container’s support manager wants to have cases assigned to users or queues based on the defined criteria. What setting Salesforce Admin needs to create in order to meet the support manager request?

Answer options:

A.Case Escalation Rules
B.Case Auto Response Rules
C.Case Triggers
D.Case Assignment Rules

Correct Answer: D 
Case Assignment Rule automatically assigns cases to users or queues based on the criteria you define. 
Option A is incorrect because case escalation rules determine when a case should be escalated. 
Option B is incorrect because case auto-response rules determine which email templates to use while sending auto-response messages 
Option C is incorrect because case triggers define the apex triggers for cases. 
Reference: 

https://help.salesforce.com/articleView?id=creating_assignment_rules.htm&type=5