Answer C. It may vary from one operating system to another
Microsoft Windows NT Advanced server 3.1 and Microsoft Windows NT Workstation 3.1 accepts 128 characters
Windows NT 4.0 and Windows 200 accepts 2046 characters
Windows XP accepts 8191 characters
Likewise the number of characters that the command line can have differs for Windows, UNIX, LINUX, DOS etc. As we can see from the details given for Windows version, as the version changes the number command line arguments also change. The latest version always accepts more number of command line inputs