A written paragraph is said to have unity when

A) the topic sentence is placed at the end of the paragraph.
B) the document is error free.
C) the paragraph uses plenty of transitional words.
D) it discusses only one idea or topic.
E) it demonstrates a conversational style.

Unity

Using only one idea or topic in a paragraph or other piece of writing.

Transitional Words

Words or phrases used to link ideas, sentences, or paragraphs, helping to create a smooth flow in writing or speech.

Topic Sentence

A sentence that introduces or summarizes the main idea in a paragraph.