Answer:
Idk if this is right but i hope it helps... sorry if it's wrong
Explanation:
I think it's Letter c.13 if I'm not mistaken
Combination therapy is the most effective treatment for HIV. I hope this help
<span>The answer is CFCs. The abbreviation stands for Chlorofluorocarbons. They are made by fully
halogenating paraffin hydrocarbon. These compounds are known to cause climate change damaging the ozone layer. It is,
therefore, advisable to properly dispose off of refrigerators,
solvents and propellants</span>