Should be prophase because chromatin coils up, becoming shorter and thicker, thick enough to become visible when stained.
The answer A. DNA in the nucleus controls all cell activity.
Streams that flow beneath melting glaciers leave long ridges of layered sediments, known as Esker. Eskers are formed within ice-walled tunnels by streams which flowed within and under glaciers. They tended to form around the time of the glacial maximum when the glacier was slow and sluggish and after the retaining ice walls melted away, stream deposits remained as long winding ridges.
Antibiotics in their name say they kill living things viruses are not living things. (Meme this as you may.)