Final answer:
It correctly utilizes the "runas" command with the appropriate syntax to launch Windows Explorer as the user "bob. The correct option is B. runas /user:bob explorer.exe.
Step-by-step explanation:
The "/user:bob" parameter in option B specifies the user "bob" for the "runas" command, launching Windows Explorer with the credentials of the specified user. Option A is incorrect as "/user:bob" is not a valid parameter for "explorer.exe." Option C is also incorrect as the order of parameters is not appropriate for the "runas" command, and option D is invalid as "/runas:bob" is not a recognized parameter for "explorer.exe."
In option B, the "runas" command is used to run "explorer.exe" with the "/user:bob" parameter, indicating that Windows Explorer should be launched with the user credentials of "bob." This is the correct syntax for achieving the desired result.
Therefore, correct option is B. runas /user:bob explorer.exe.