First option. Answer number 1
Answer:
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Explanation:
Because it shifted the international focus towards the Antarctic and resulted in numerous scientific and geographic expeditions. As many as 10 countries launched 17 Antarctic expeditions. Actually, the failed mission of Shackleton resulted in great interest among the countries to conquer the unconquered.
I believe the answer to this question is letter C.
The statement suggests that the usage of wind energy is successful in meeting energy needs and demands that is why many European countries have been using this alternative source. With this success, it can be implied, especially to the readers, that wind energy is indeed beneficial not just for small-scale consumption, but also to extensive and wider usages as well.
