Answer:
The correct answer is: D. copper
Step-by-step explanation:
Copper is a chemical element that belongs to the group 11 and period 4 of the periodic table. It is a d-block element that has atomic number 29. Copper is a pinkish-orange colored metal that has high conductivity.
It readily oxidizes when exposed to atmospheric oxygen to form a greenish-blue layer of copper carbonate. This layer is known as verdigris or patina.