In his sociology class, Eric is giving a persuasive speech on gun control. He wants to make sure thathe supports what he is saying, so he makes statements such as "According to the Task Force onCommunity Preventive Services, in 1994, the estimated lifetime medical cost of all firearms injuries inthe United States was $2.3 billion" and "According to a 2007 poll by CNN, about 65 percent ofAmericans believe the constitution guarantees the right to own guns." Eric is relying on what type ofsupport?a. statisticsb. examplesc. narrativesd. quotations