According to the Most Recent Data from Satellites Making Precise

According to the most recent data from satellites making precise measurements of the properties of the cosmic background radiation (CBR) ,

A) normal matter (like the atoms in our bodies) makes up 99% of the total mass-energy of the universe
B) dark matter makes up less than 5% of the total mass-energy of the universe; it's only a minor contributor to what makes up the cosmos
C) the dark energy makes up just a little less than 70% of the density of the universe, making it the most significant constituent of the mass-energy
D) normal matter, dark matter, and dark energy each contribute about 1/3 of the total density of the universe - their contributions are almost exactly equal
E) the universe is only about 6,000 years old
Section 29.6: The Inflationary Universe