Which set of letters spells a valid word when decrypted using the Caesar cipher with a key of 2?

HJG

TWP

XPY

PLC

2.

Which statement is not true about the Vigenre cipher?

The Vigenre cipher cannot be cracked using brute force.

It is harder to crack a Vigenre cipher than a Caesar cipher.

The Vigenre cipher utilizes more than one shift value dependent on a keyword.

The Vigenre cipher has more keys to choose from than the Caesar cipher.

3.

What is the ciphertext that results from encrypting the word LET using the Vigenere cipher along with the keyword, CAB?

MFU

JES

NGV

NEU