Your school uses "Multi-Factor Authentication" (MFA). This means after you type your password, you also have to enter a code sent to your teacher's phone. Why is this much safer than just using a password?
A) Because it gives you two chances to remember your password.
B) Because even if a hacker steals your password, they still can't get in without that second secret code.
C) Because it makes the computer screen look cooler.
D) Because it proves you own a smartphone.