It might be said that the first lesson of the poem is to float on one´s back (option A) It seems that a father is teaching his daughter to swim on her back. This can be inferred by the use of certain words such as "Lie back daughter" "spread your arms wide". It also might be understood that the lesson is deep that that, It might suggest a father letting her daughter go, letting her be because she is going to be safe.
I believe that the answer to the question provided above is yes the concept of golden hour is applicable to other disasters rescue , since it will decide the survivability of those you are injured.
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