Which of the following most logically completes the passage?
Carbon dioxide emissions are a concern for environmentalists, but another category, hydroflourocarbons (or HFCs), is among the lesser-known types of greenhouse gas. A study of refrigerant gases showed that HFCs decompose into harmless compounds relatively quickly. Therefore, if HFCs were banned, the level of greenhouse gas pollution would be greatly reduced, especially since _______.
【选项】
the study of HFCs found that one of the compounds into which HFCs decompose is a strong acid
选项是否正确？