Q: A black solid by itself, this element is incredibly important because of what it makes when it combines with many other elements, including oxygen?


Read this paragraph and choose the correct option from the provided answers:

Carbon is an element. By itself, it’s a black solid. You can see a lump of carbon in Figure below . Carbon is incredibly important because of what it makes when it combines with many other elements. Carbon can form a wide variety of substances. For example, in the air, carbon combines with oxygen to form the gas carbon dioxide.

 Choices:

- lead

- dioxide

- hydrogen

- carbon


A:
carbon