A scientific theory is a broad explanation for events that is widely accepted as true. Evolution is a change in species over time. Evolution occurs by natural selection. The cell theory states that all living things are made up of cells, and living cells always come from other living cells.
I’d go with B. (if it’s not then C)
The nucleus controls everything in the cell. Ribosomes create proteins and w/o the nucleus telling them what to do, no proteins can be produced inside the cell.
Helps create the structure
