Problem $2.$ Logan has just intercepted a long piece of ciphertext. They know that it is an encryption of English

plaintext, but they do not know which cipher was used to encrypt it$.$ They find that the ciphertext has an index

of coincidence of $1\mathrm{.}1.$ Out of the following list of ciphers, circle the ones that may have beeri used to produce this

ciphertext. Explain briefly.