Which sentence from the selection best conveys the author's main message?
A. O But as mentally prepared as we were,
we also had to be physically aware, as
well. (paragraph 6)
B. O Every night aboard our safe and warm
ship, we thought about what it takes
to survive in Antarctica, an incredibly
harsh place. (paragraph 19)
c. Over the course of our visit, we came
to respect and even revere the power
of that sea. (paragraph 20)
D. O Both experiences were unforgettable,
and one would not have been possible
without the other. (paragraph 21)