Which of the following access levels can be granted to the report and dashboard folders? (Choose 3 options)

Answer options:

A.Public Access
B.Shared Access
C.Viewer Access
D.Editor Access
E.Manager Access

Correct Answer: C, D, and E 
Each user, group, or role have its own level of access to a report and dashboard folder. Viewers can see the data. Editors can determine which data is shown. Managers can control access. 
Option A is incorrect because public access settings control what public users can do on each Salesforce Sites site and it`s not related to reports. 
Option B is incorrect because shared access is not an option for granting access to reports and dashboard. 
Reference:

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