The given statement asserts a false claim. However, it exemplifies a dependent clause as it contains a subject 'the commercial' and a verb 'was' but conveys an incomplete thought yet the given reasoning is inadequate stating that 'it is a complete thought.' <u><em>It is a dependent clause and requires an independent clause to accomplish the thought and form the complete complex sentence</em></u>. Thus, the given assertion would be characterized as false.
Answer: b) The author explains how events impacted people's lives and how people adapted to those changes. This gives a more reasonable claim so the author can list more factual evidence.