The would be a because it makes more sense than the other sentences. If you read each of them a will make better sense.
Exposition is the answer because they are wrapping the whole story up saying there is no knight like Lochinvar
Answer:
The speaker fear that no matter what happen, the tomorrow will continue as the passing of time. The future is unknow and the fruit will continue in the future.
Explanation:
C. Making sure that you do not have too many simple sentences