A value of N =0.1 for the Drake equation signifies that
A) one out of every 10 solar systems in our galaxy harbors intelligent life.
B) one out of every 10 solar systems in our galaxy harbors life of some kind.
C) one out of every 10 Milky-way sized galaxies in our universe harbors intelligent life.
D) one out of every 10 Milky-way sized galaxies in our universe harbors life of some kind.
E) approximately one intelligent civilization in the universe is created every 10 billion years.
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