You have sensitive client data to send to your client.
Do you:
a) Put it on pastebin and send them a link
b) email it to them
c) put it on a securely encrypted pen drive, courier that to the client, and provide the password via a second communication channel.
(You did not have to do the course to answer the quiz, the answers would generally reveal themselves through the art of sounding super corporate - whilst simultaneously being the thing you've literally never ever seen anyone do)