Which type of cipher works at the bit level, is more suitable to hardware implementations and should

Which type of cipher works at the bit level, is more suitable to hardware implementations and should be statistically unpredictable?

A.
Stream Cipher

B.
Block Cipher

C.
Open Cipher

D.
Vigenere Cipher

Explanation:
Stream ciphers work at the bit level and work best if implemented in
the hardware due to the intensive nature of manipulating each bit of information.