please help with this thank you

$(1$ point$)$ Alice and Bob are using the EIGamal cipher with the parameters $p=97$ and $=5.$

Their parameters are small and we decide to crack the cipher.

Suppose Alice is observed sending public ephemeral key $k_E=27$ and Bob sends public key $=49.$

Alice is observed transmitting the ciphertext $y=86.$

a$)$ What is the masking key $k_M?$

b$)$ What is the plaintext?