Universal Container’s Sales Ops created several joined reports and would like to subscribe a few users to it. How many users can subscribe to joined reports?

Answer options:

A.Subscriptions are not supported for joined reports
B.Each user can subscribe to 5 reports
C.Each user can subscribe to 3 reports
D.Each user can subscribe to 10 reports

Correct Answer: A 
Subscriptions are not supported for joined reports. 
Other options are incorrect because this is not possible. 
Reference:

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