Try this method if the other methods don’t work for you.
Write down a list of questions that you want to ask your interviewee. Ask them to record themself answering these questions. You can send them this link, which will give them tips on how to record themself:
Ask your interviewee to send you their recording using whatever file transfer method suits you both: for example, Dropbox, WeTransfer or Google Drive.
You can then transfer their recording to a computer (if you’re doing Option B) or to your teacher (if you’re doing Option A). If you’re transferring the recording to your teacher, make sure to name it correctly (you will find instructions on naming and your files when you get to part 4).