I believe the correct answer is C
Answer:
The galaxies are moving away from Earth because the fabric of space itself is expanding. While galaxies themselves are on the move — the Andromeda Galaxy and the Milky Way, for example, are on a collision course — there is an overall phenomenon of redshift happening as the universe gets bigger.
Sorry someone flagged this
I believe the answer would be B.
The mitochondria is the powerhouse of the cell because it produces ATP, which is energy.
