According to the US Centers for Disease Control and Prevention (CDC), your hands are a primary culprit in the spread of viruses and bacteria. The CDC states that washing your hands thoroughly with soap and water is the most effective way to maintain proper hand hygiene. Hand sanitizer containing at least 60 percent alcohol can be used if you do not have access to soap and water. Either way, having clean hands will benefit you and others by helping prevent the spread of germs. What aspect of this argument for proper hand hygiene lends it the most credibility?
1. By referencing information from the CDC, the writer has provided unbiased research.
2. By including the 60 percent figure, the writer has provided factual, scientific evidence.
3. By discussing the spread of germs, the writer has addressed a crucial 3 health concern.