Q: you're a consultant whose clients send you documents encrypted with your public key. you use your private key to decrypt these documents. what would happen if the client uses the wrong public key to encrypt

the file before sending it to you?

$1.$ you would not be able to decrypt the file, so you would not be able to open it

$2.$ you would not be able to decrypt the file, so when you open it you will see garbled, nonsensical output

$3.$ you would not be able to see the contents of the file

$4.$ you would not be able to decrypt the file, so you will only be able to see a preview of the files contents