Solution

C: Generic medicines are pharmaceutical products that: This sentence begins by introducing the topic of generic medicines, setting the context for the rest of the paragraph. D: Contain the same active ingredients as brand-name drugs but are usually sold at a lower cost: This sentence provides information about the key characteristic of generic medicines, which is that they have the same active ingredients as brand-name drugs but are more affordable. A: They undergo rigorous testing and must meet the same quality standards as their brand-name counterparts: This sentence elaborates on the quality of generic medicines by mentioning that they undergo testing and must meet the same standards as brand-name drugs. E: Generic medicines play a crucial role in making healthcare more affordable and accessible: This sentence explains the significance of generic medicines in healthcare, emphasizing their role in improving affordability and accessibility of medical treatments. B: Contributing to better public health outcomes and reducing medical expenses: This sentence concludes the paragraph by highlighting the positive impact of generic medicines on public health outcomes and medical costs.