What is the maximum number of tags that a user can assi…

What is the maximum number of tags that a user can assign to an EC2 instance?

A.
50

B.
10

C.
5

D.
25

Explanation:
To help manage EC2 instances as well as their usage in a better way, the user can tag the instances. The tags are

metadata assigned by the user which consists of a key and a value. One resource can have a maximum of 10 tags.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Using_Tags.html