Multiple Choice
Suppose there are a million habitable planets in our galaxy, that one in ten are habitable, that one in a thousand planets with life had at some point had an intelligent civilization, and that one in a hundred civilizations that has ever existed is in existence now. Given this, how many civilizations are in existence now?
A) 10
B) 1
C) 1000
D) 100
Correct Answer:
Verified
Correct Answer:
Verified
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