Answer:
B
Explanation:
Antonym = opposite; the opposite of painful would be pleasant
Both student activism and the silent majority have a large group of unspecified people arguing for their cause rather quietly compared to more popular and more acknowledged protesting groups.
Coherence in writing is the logical bridge between words, sentences, and paragraphs. Coherent writing uses devices to connect ideas within each sentence and paragraph.
So the best answer would be: the order of ideas enabling the reader to move easily from point to point