Answer: Option D
Explanation: In a text, authors usually wrote definitions with commas or dashes. For an example, “An elephant, a giant grey animal with a trunk and tusks, has...”
Parentheses are usually to add something along with the text. Quotations are to quote a piece of text. The parts of speech is a group where it has different types of speech. So, commas and dashes are the best answer here. I hope it helps!
