Why does Universal Container’s salesforce admin is not able to view archived activities in the sandbox?

Answer options:

A.Archive activities get deleted after being in the system for more than 365 days
B.Archived activities are not copied while creating a sandbox
C.Archived activities are not copied while refreshing a sandbox
D.Archived activities need to be enabled to be able to view them in the sandbox

Correct Answer: B and C 
 While creating or refreshing a sandbox, activities that are archived aren’t copied or carried over. 
Option A is incorrect because archived activities are not deleted. 
Option D is incorrect because there is no option to enable archived activities to view archived activities in the sandbox. 
Reference: 

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