The correct option is E Si
Silicon is a metalloid, a
semimetallic element that is neither a metal nor a nonmetal but has some
of the properties or characteristics of the two. A semi-metal in the
periodic table, silicon is one of the elements that can't be found in
nature in its elemental form. It is also one of the most common elements
in nature, accounting for about 28 percent of the earth's crust by mass.