Which description of a function of a symmetric encryption algorithm is true?

Which description of a function of a symmetric encryption algorithm is true?
A . Symmetric encryption algorithms can be used to generate a certificate request to a certificate authority.
B . It uses the same key to encrypt and decrypt data.
C . It uses one way hashing functions to encrypt and decrypt data.
D . Encrypted data can be shared among various parties without sharing the key.

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Answer: B