Which statement is the most effective claim? organic foods are a healthier option than conventional foods. it is easier to find organic foods than to find conventional foods. restaurants are beginning to serve more organic foods. some think that organic foods are tastier than conventional foods.

A) Organic foods are a healthier option than conventional foods

The answer is A.   Options B,C and D present only general ideas, suggestions or information, by saying that it's easier to find organic food, but not indicating where; by mentioning that restaurants are beginning to serve organic food, without specifying which restaurant, and just saying what some think (but are not sure) about the taste. The claim in A is most effective because it affirms something of public interest: heath.