Which of the following is an example of open-source software?

Correct option is B

The correct answer is (b) Firefox.
Explanation:
● Firefox is an open-source web browser, meaning its source code is available for anyone to view, modify, and distribute.
● Facebook, WhatsApp, and YouTube are proprietary services where the source code is kept secret by the owning companies.
Information Booster:
● Open-Source Software (OSS): Software with source code that anyone can inspect, modify, and enhance. Examples include Linux, Apache, and VLC Media Player.
● Proprietary Software: Software that is owned by an individual or a company. The source code is usually kept secret.
Additional Knowledge:
● Linux: A well-known open-source operating system.
● Android: An open-source mobile operating system based on Linux.