Encrypt means

• A. to reveal information
• B. to make information readable
• C. to store information
• D. to change information so that its meaning is hidden

Answer: (D)

Encryption is about turning readable information into a secret form so that only someone with the right key can read it. That’s why the correct idea is to change information so its meaning is hidden. Imagine sending a message that looks like random letters to anyone who intercepts it; when the recipient uses the correct key, the message becomes readable again. The other choices describe revealing, storing, or making information readable, which are not what encryption does.