Assuming they all use the same basic algorithm, what might it be SHA-1.
c. SHA-1
Step-by-step explanation:
As solution hash value for system will used only 160 bit even though performance is bit slower. Normally SHA-1 method been used. Basically there four methods
MD5 is a methods where it checked regularly whether the file system or altered or not. RIPEMD is a method where it store or converts value to 160 bits. SHA1 methods following some security algorithms where it keeps bits in 160 bits with some security crypto or signature
SHA2- this method following some security algorithms where it keeps bit in 256 bits and we have sha384 and sha512. SHA 2 method is not used now days.