The command type c:\temp\file.txt > c:\temp\file.exe:file.txt utilizes the Alternate Data Streams (ADS) feature of the Windows NTFS file system. The syntax filename:streamname is used to create or write to a data stream that is separate from the main file content but is still attached to the file's MFT entry. In this case, the content of file.txt is being written to an alternate stream named file.txt associated with the host file file.exe. This technique is often used to hide data or malicious code, as alternate streams are not visible in standard directory listings or Windows Explorer.

A. White space: The command uses spaces as delimiters, but the core feature being exploited is the colon (:) syntax for ADS, not the white space itself.
B. AFS: The Andrew File System (AFS) is a distributed network file system and is not a native feature of the local Windows NTFS file system shown in the command.
D. Slack file: File slack is the unused space at the end of a file's last allocated cluster. The command shown does not interact with or write data to this space.

1. Microsoft Corporation. (2021). File Streams. Microsoft Docs. Retrieved from https://docs.microsoft.com/en-us/windows/win32/fileio/file-streams. This document explains that NTFS files can contain multiple data streams and describes the filename:streamname syntax for accessing them.

2. Carrier, B. (2005). File System Forensic Analysis. Addison-Wesley Professional. In Chapter 10, "NTFS Concepts," the section on "Alternate Data Streams" (pp. 289-291) details how ADS works, its structure within the MFT, and its use for hiding data, including creation via command-line redirection.

3. Russinovich, M., & Solomon, D. A. (2012). Windows Internals, Part 2 (6th ed.). Microsoft Press. Chapter 12, "File Systems," describes the architecture of NTFS, including its support for multiple data streams per file as a fundamental feature (p. 418).