The Android operating system is primarily based on the (A) Windows (B) iOS (C) Linux (D) FreeBSD (E) UNIX

Understanding the Question

The question asks about the foundational operating system that Android is built upon. To answer this, we need to analyze the options given.

Analyzing the Options

1. (A) Windows - This is a proprietary operating system developed by Microsoft and is not related to Android.
2. (B) iOS - This is Apple's operating system for mobile devices and does not influence Android.
3. (C) Linux - Android is built on a modified version of the Linux kernel, making this a strong candidate.
4. (D) FreeBSD - This is a Unix-like operating system, but it is not the basis for Android.
5. (E) UNIX - While Linux is Unix-like, it is not directly based on traditional UNIX.

Conclusion

After evaluating the options, the correct answer is (C) Linux, as Android is primarily based on the Linux operating system, utilizing its kernel while being tailored for mobile devices.

Final Answer

(C) Linux