Answer:
C) The space shuttle program has come to an end.
Explanation:
A. is not the right answer. The author never suggests there is nothing more to be learned from researching space, as space is still wast unresearched segment.
B. is not the correct answer. The prices of the ocean and space programs are not compared.
C. is the right answer. The author says the space shuttle program has ended in July 2011. after three decades and an estimated price of $200 billion. With this ending came the question of what is the next big thing to research. Finally, it has been decided that the next research area will be the ocean.
D. is not the right answer. The author doesn’t say space research is useless to humans, as we have a lot to gain from knowing more about the universe.