Setting constraints for multiple file downloads

Which of the following is not the correct way to set download constraints for multiple file downloads using wget?

50 XP

Store all URL locations in a text file (e.g. url_list.txt) and iteratively download using wget and option flag i
press1
Use wget with the --limit-rate option, followed by the download speed in KB/s.
press2
Use wget with the --wait option, followed by the wait time in seconds.
press3