Which of the following statements is an example of expert testimony used as evidence?
a.) In the United States, there are approximately 500,000 miles of long-distance pipelines.
b.) On the face of things, it would seem as if pipeline transmission would be quite dangerous, simply because there are so many pipelines.
c.) According to the Manhattan Institute for Policy Research, pipelines are undoubtedly the safest way to transport petroleum products.
d.) A massive derailment in North Dakota ignited the train's contents and sent a fireball 100 feet into the air.