The correct answer is A. Organic foods are a healthier option than conventional foods.
Explanation:
A claim is an idea or statement you can argue about; this means you need to provide evidence to prove it. Due to this, effective claims are arguable, which means they are not only facts or opinions but positions about a topic. Additionally, these should be specific which means they address a specific topic.
According to this, the most effective claim is "Organic foods are a healthier option than conventional foods" because this addresses only a specific topic, and also it establishes a position that can be debated or proved, while other options only state facts or opinions.
