What does Paxos guarantee What is the best case time it takes for the machines to achieve consensus once a proposer initiates the Paxos protocol. Consider the Paxos protocol to be finished once all participants have received the chosen value and flushed all log records. N >= 2F 1? Choice 1 of 4:Both safety and liveness Choice 2 of 4:Safety but not liveness Choice 3 of 4:Liveness but not safety Choice 4 of 4:Neither safety nor liveness