A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?

Single quotes prevent tilde expansion, so '~' is treated as a literal character rather than the home directory path, making the path incorrect.

Double quotes also prevent tilde expansion in bash, so the path does not resolve to the home directory.

This expands to '~/dir' without a backslash because the backslash is inside single quotes applied only to 'dir', not to the backslash itself.

A single unquoted backslash before 'd' is a bash escape sequence that simply produces the literal character 'd' and discards the backslash, so this resolves to '~/dir' instead of '~/\dir'.

In bash, an unquoted '\\' represents a single literal backslash character, so '~/\\dir' expands to the home directory path followed by '\dir', which matches the actual directory name. The tilde must remain unquoted to trigger tilde expansion to the home directory path. This combination correctly encodes both the home directory and the literal backslash in the name.