Question: hat is the ciphertext produced when encrypting the plaintext HELLO with the keyword KEY using the Vigen re cipher? a . None of these b

hat is the ciphertext produced when encrypting the plaintext "HELLO" with the keyword "KEY" using the Vigenre cipher?
a.
None of these
b.
QNUUX
c.
KHOOR
d.
MFWIV
e.
RIJVS

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