Water is usually a symbol for life because it is so vital to survival.
Ironically, being stranded at sea, you can't drink the boundless surrounding water.
I would say the answer is D. The character is not stranded by choice. They are stuck, unsure how to navigate a way out of the current situation.
Answer is b i think mabye not
Your answer is d, because the man was speaking for himself :)
Hospitality means something along the lines of caring, nice, etc.
The answer should be the 3rd one, perseverance.