Question

read a students reaction to a nonfiction article.
summary:
i read an article by alfred jenson about oil spills. jenson has crossed the arctic ocean many times on vessels designed for exploration and research. he believes oil spills can be prevented with stricter international regulations governing oil transport.
controlling idea:
the controlling idea of jensons article is that many oil spills have occurred in recent years in the arctic ocean.
what must the student add to make this controlling idea complete?
jensons viewpoint
expert testimony
arctic ocean statistics
specific dates

Explanation:

The controlling idea should reflect the author's stance. In the summary, Jenson believes oil - spills can be prevented with stricter regulations. The current controlling idea only states a fact (many oil - spills in the Arctic Ocean) without Jenson's viewpoint on what should be done (prevention via regulations). Expert testimony would be someone else's statement, Arctic Ocean statistics are data (not part of the controlling idea here), and specific dates are not relevant to making the controlling idea about the author's stance complete.

Answer:

Jenson's viewpoint