How many bits encryption does SHA-1 use?

How many bits encryption does SHA-1 use?

A.
256 bits

B.
160 bits

C.
128 bits

D.
64 bits

Explanation:
SHA-1 (as well as SHA-0) produces a 160-bit digest from a message with a maximum length of 2 64 – 1 bits, and is based on principles similar to those used by Professor Ronald L. Rivest of MIT in the design of the MD4 and MD5 message digest algorithms.