The correct option for the question "Which of the file formats is supported in all Windows operating systems?" is C. FAT. Detailed Explanation:

1. Understanding File Formats:
2. File formats refer to the way data is organized and stored on a disk. Different file systems have different structures and capabilities.
3. Common file systems include FAT (File Allocation Table), NTFS (New Technology File System), and others.
4. FAT (File Allocation Table):
5. FAT is one of the oldest file systems and has been widely used in various operating systems, including all versions of Windows.
6. The FAT file system has several versions, including FAT12, FAT16, and FAT32. All these versions are supported by Windows operating systems, making it a versatile choice for compatibility.
7. NTFS (New Technology File System):
8. NTFS is a more advanced file system introduced with Windows NT and is the default file system for modern Windows operating systems (like Windows 10 and Windows 11).
9. However, NTFS is not supported by older versions of Windows, such as Windows 95 or Windows 98, which limits its compatibility across all Windows operating systems.
10. BSDB:
11. BSDB is not a recognized file system in the context of Windows operating systems. It is more commonly associated with BSD (Berkeley Software Distribution) Unix systems. Therefore, it is not a valid option.
12. EXT:
13. EXT (Extended File System) is primarily used in Linux operating systems. While there are ways to access EXT file systems from Windows (using third-party software), it is not natively supported by Windows operating systems. Thus, it cannot be considered a universally supported file format across all Windows versions.

Why Other Options Are Incorrect:

• A. BSDB:
• This is not a file system used in Windows. It is associated with Unix-like operating systems, making it irrelevant to the question.
• B. EXT:
• As mentioned, EXT is a file system used in Linux. Windows does not support EXT natively, so it cannot be the correct answer.
• D. NTFS:
• While NTFS is widely used in modern Windows systems, it is not supported by older versions of Windows. Therefore, it does not meet the criteria of being supported in all Windows operating systems.

Summary of Key Points:

• FAT is the correct answer because it is supported by all versions of Windows.
• NTFS is not universally supported across all Windows versions, particularly older ones.
• BSDB and EXT are not relevant to Windows operating systems, as they are associated with other operating systems.
• Understanding the compatibility of file systems is crucial for effective data management across different operating systems.

Revision Summary:

• FAT is the only file system supported by all Windows operating systems.
• NTFS is not compatible with older Windows versions.
• BSDB is not a Windows file system.
• EXT is primarily for Linux and not natively supported by Windows.