Which of the following is copyrighted software that is distributed at no cost for a trial period?a.sharewareb.freewarec.custom softwared.mobile app

Answer

The correct answer is a. shareware.

Explanation

1. Shareware is a type of software that is distributed for free on a trial basis, allowing users to try it out before making a purchase. It typically comes with some limitations or reminders to purchase the full version after the trial period expires.

2. Freeware, on the other hand, is software that is entirely free to use and is not necessarily available only for a trial period.

3. Custom software refers to tailor-made software developed specifically for a particular organization or user, and it is usually not available to the general public.

4. Mobile app is a broad term that encompasses any software application designed to run on mobile devices, but it does not specifically refer to software with a trial period.

Thus, shareware is the appropriate term for copyrighted software offered for free for a limited period.