(b) A client attempts to synchronise with a time server. It records the round-trip times and timestamps returned by the server in the table below:

(i) Which of these times should it use to set its clock?

(ii) To what time should it set it?

(iii) The system is required to synchronise a file server's clock to within +/-1 millisecond. Can this requirement be met using Cristian's algorithm? Explain.