29.12 hours gale warning valid from 0715040600 UTC From this message, the warning is expected to be valid from what date and time? (A)0715 UTC, Apr 6th, 2000 (B)0600 UTC, Jul 15th, 2004 (C)0715 UTC, Jul 4th, 2000 (D)0600 UTC, Apr 15th, 2007