Answer:
It is copyright infringement
Step-by-step explanation:
Required
Why you should prevent your friend from copying a software you bought
When you purchase a software, you claim ownership of the software (for using the software on your devices); however, your ownership is not a full ownership because the software is an intellectual property of the developer.
This means that, you cannot copy or redistribute the software without the consent of the developer. Doing so, without getting consent, is a copyright infringement.