Final answer:
Option A is the best choice to combine the sentences as it keeps the original meaning intact while forming a coherent and clear sentence. It mentions 'food labels' and 'shoppers', which are relevant to the original context of the confusion over different food labels.
Step-by-step explanation:
To combine sentences 2 and 3 without changing their meaning, the best option is A. 'Because food labels can be overwhelming, shoppers often scratch their heads as they try to figure out the differences between natural and organic products.' This choice effectively combines the essence of both sentences into one coherent sentence, maintaining the original context regarding the confusion arising from different food labels.
Organic foods are grown without synthetic pesticides and are increasingly available in grocery stores worldwide. The USDA has strict requirements for products labeled as organic, and such products are part of the mainstream in many countries. However, not all organic agricultural practices may be free from environmental harm, since even natural pesticides may still pose risks to bees and other pollinators.
Therefore, it is important for consumers like Camille to research the impact of naturally derived pesticides used on organic products before making a purchasing decision based on environmental concerns.