Which of the following statements is correct?

The correct option is C. Generally, metals are ductile. Metals are generally malleable — that is, they can be hammered or pressed permanently out of shape without breaking or cracking — as well as fusible (able to be fused or melted) and ductile (able to be drawn out into a thin wire). Typically they are malleable and ductile, deforming under stress without cleaving. However, there are some metals which are not ductile. For example, sodium and mercury. Non-metals on the other hand are not ductile.