B$4.$ In which case would you be the most sure that no one other than the recipient can read the content of your emails?

Send an e$-$mail via a webmail platform that isn't hosted by Google or other big corporations.

Send e$-$mails only on platforms that claim to encrypt your communications for you.

Encrypt your message locally on your computer using the recipient's public PGP key, then paste the message into a Google Mail $($or similar email provider$)$ and send it to the recipient.

In neither $-$ sending emails is not secure$.$ It's best if you just call someone's phone

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