Answer.
C!
Explanation:ignore first answer i read wrong.Hope i could help<3
Answer:
I don't understand the question?
Answer:
“Nano” is the metric prefix for 1 x 10-9, so a nanometer (nm) is a billionth of a meter. It comes from an ancient Greek word that means “dwarf.” Nanoparticles range from 1 to 100 nm in diameter.
Explanation: