Concept:A coherent paragraph begins with a general introduction, then adds supporting details, followed by a logical conclusion.
Explanation:Sentence 3 defines communication as an intricate process—ideal for opening the paragraph.
Sentence 2 lists the non-verbal elements that often carry more meaning, directly expanding on the definition.
Sentence 1 uses "Therefore" to draw a conclusion about factors beyond words, linking back to the details in sentence 2.
Sentence 4 further clarifies that subtle indicators reveal true intent, providing a closing thought.
Thus the correct sequence is 3, 2, 1, 4.
Answer:Option A: 3, 2, 1, 4