. Unless it is unavoidable do not jump from a place higher than 5 meters into the water. Try to minimize the shock of sudden cold immersion. When should the said caution be taken into account?

A、Themarinerstrytoputoutfireonboardofvessel.
B、Thepeopleonboardtrytosurvivethemselvesfromashipinperils.
C、Thesalvorstakeactionstorescuethesurvivorsatsea.
D、Thepilotcomeonboardfromhisboatinbadweather.