Would I write this sentence as... A. Graphite is a form of carbon; it's greasy and soft with a metallic luster.
B. Graphite is a form of carbon, it's greasy and soft with a metallic luster.

Explanation:

carbon (C), nonmetallic chemical element in Group 14 (IVa) of the periodic table. Although widely distributed in nature, carbon is not particularly plentiful—it makes up only about 0.025 percent of Earth’s crust—yet it forms more compounds than all the other elements combined. In 1961 the isotope carbon-12 was selected to replace oxygen as the standard relative to which the atomic weights of all the other elements are measured. Carbon-14, which is radioactive, is the isotope used in radiocarbon dating and radiolabeling.

the correct answer is

1. lived in castle in naples

2.educated in monastery

3.received a doctorine in theology

4.taught in paris

5. studied in dominican monastery