For this one I would say C.) Work Breakdown Structure
A is the answer for your question
Make it stand out. Add a pic and stuff
What issues are u having... what part is challenging you
Answer: A- Public Key Encryption
Explanation: The Public key Encryption is used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.