No, it's not B. The energy needed to "pump" sodium outside the cell in active transport is ATP. When ATP releases energy (for metabolism usage) during active transport, the sodium is discarded.
I don't get it it's kinda confusing
It is A. meiosis im pretty sure :)
the characteristics applies to all three domains and viruses by the genetic material.
High power if your using a light microscope. Hope this helps.