Based on current evidence, how does the actual average density of matter in the universe compare to the critical density?
A) The actual average density of matter, even with dark matter included, is only about a quarter of the critical density.
B) If we include dark matter, the actual average density of matter equals the critical density.
C) The actual average density of matter less than 1% of the critical density.
D) The actual density of average matter is about twice the critical density.
A) The actual average density of matter, even with dark matter included, is only about a quarter of the critical density.
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