Which implementation is the IBM Blockchain managed service based on?

Which implementation is the IBM Blockchain managed service based on?A . Hyperledger SawtoothB . BitcoinC . Hyperledger FabricD . Ethereum View Answer Answer: C Explanation: https://techcrunch.com/2017/03/19/ibm-unveils-blockchain-as-a-service-based-on-open-source-hyperledger-fabric-technology/#:~:text=IBM%20unveiled%20its%20%E2%80%9CBlockchain%20as,to%20build%20secure%20blockchain%20networks....