The correct answer to this question is that Emerson believes that a sentence can be grammatical in context but ungrammatical in isolation. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:
The FitnessGram Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly but gets faster each minute after you hear this signal *signal sound*. A sing lap should be completed every time you hear this sound. ding Remember to run in a straight line and run as long as possible. The second time you fail to complete a lap before the sound, your test is over. The test will begin on the word start. On your mark. Get ready!… Start.
It should take a boat about 23 days give or take a day and weather conditions to travel that distance
The answer is not D or A. Probably B, Compare and contrast.