D is a run on sentence. There is a comma splice, which means that the writer used a comma to join sentences where there should not be a comma. To make D a correct sentence, it would be best to put a period where the comma is.
It is a disgrace when people refuse to practice pollution control. Air pollution continues to worsen.
Hope that helps!
The part in the story on which the action arises is when Gendel attacks Heorot and at this moment Beowulf was able to defeat and killed him. When Grendel's mother knows it, she was very revengeful and extremely angry to Bewolf. She then went to Beowulf and attack him. It was a very bloody encounter.
The answer should b B i asked this question before
<span>it might be said that the most important insight Momaday gained about his heritage during his pilgrimage from Yellowstone to his mother´s grave was the sadness that his grandmother expressed in her Kiowa prayers were about sadness and the sense of lost</span>