I believe the answer is A. The point of view is third person because the reader hears the voices of the speaker, the traveler, and Ozymandias.
Specific heat of water is higher than that of land. That means the amount of solar energy required to heat water will be more than that of land. So, when same mass of water and land are exposed to solar energy water would require more time to heat up than land. So water heats up to a lower temperature than land.
This is math, not history. However, I believe the answers would be:
1 b
2 c
3 a
4 d
If these are not correct, then sorry. Hope they are correct though!