Hey there!
The answer would be what to do if someone falls overboard. Finding food is not that hard on a ship and probably not important. Washing the ship Hull is not for the passengers. Navigation lights is for the driver of the boat to use. If someone falls overboard, they could drown if they don’t know how to swim. This is very dangerous.
Answer: It would be the last option, the essential amino acid content. Determining the quality of a protein is determined by assessing its essential amino acid composition, digestibility and bioavailability of amino acids
I believe that is the age of sixteen.