What is a type of symmetric-key encryption algorithm that transforms a fixed-length block of plaintext …

_____________ is a type of symmetric-key encryption algorithm that transforms a fixed-length
block of plaintext (unencrypted text) data into a block of ciphertext (encrypted text) data of the
same length.

A.
Stream Cipher

B.
Block Cipher

C.
Bit Cipher

D.
Hash Cipher