9. Transition signals are words and phrases that connect ideas of sentences and paragraphs for coherence. Which of the following sentences shows coherence? A. Chloe Eunice is tired, she still needs to brush her teeth before going to bed. B. Chloe Eunice is tired or she still needs to brush her teeth before going to bed. C. Chloe Eunice is tired and she still needs to brush her teeth before going to bed. D. Chloe Eunice is tired; however, she still needs to brush her teeth before going to bed.​