The correct answer is B. Facts and statistics
Explanation:
An informative speech or text is one that aims at providing information to the audience about a situation, issue or topic rather than entertaining or persuading the audience. Because of this informative speeches are considered as formal and should rely on facts, evidence and statistics that provide precise and reliable information about the situation, topic or issue the speech is about. This means if Thomas is planning to deliver an informative speech about global warming the best supporting material would be facts and statistics as this material is reliable and also would give Thomas the information he needs to explain and provide information about global warming to the audience which is the main purpose of informative speeches.
