Question: Which of the three methods will copy the directory named "photo dir" recursively from the user's home directory to /backups?

1. None of the three methods will expand to the user's home directory. Only using `"$HOME/photo dir"`will be successful.
2. Only method 1 will expand `"~/"` to the user's home directory and then append the quoted directory name that includes a space.
3. Only method 2 will expand `"~/"` to the user's home directory and then append the quoted directory name that includes a space.
4. Only method 3 will expand `"~/"` to the user's home directory and then append the quoted directory name that includes a space.

Answer: The correct answer of the above question is Option D:Only method 3 will expand `"~/"` to the user's home directory and then append the quoted directory name that includes a space.