Have you ever wondered how diamonds and graphite can have such different properties if they are both completely made of pure carbon? Why do you think that is? Does this make you think of any other questions that you have? Record your thoughts below.

no

Explanation:

"a.) well–developed vascular system."

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.