Question $8(4$ points$)$

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Alice and Bob communicates over the Internet using substitution cipher. Eve the eavesdropper wants to launch a cryptanalysis attack. Eve has ability to send only one plain text to Bob and get the corresponding cipher back. Which of the following plain text will be most likely for Eve to choose?

"abcdefghijklmnopqrstuvwxyz"

"This a plaintext"

$"$Hi Alice

$"$Hi Bob"