Question 3

Replacing "They say" with "Researchers assert that" improves clarity and credibility.

Changing "They say" to "Researchers assert that" provides a more authoritative tone to the statement, indicating that the claim about saving energy through addressing food waste is supported by research rather than being a vague assertion.

A) Replace They say with Researchers assert that

This option is correct because it enhances the credibility of the statement. By specifying that researchers are making this assertion, it implies that the claim is backed by scientific evidence, making the argument more persuasive and informative.

B) Insert probably before save

This option is incorrect as it weakens the statement. Adding "probably" introduces uncertainty and diminishes the impact of the claim regarding energy savings from addressing food waste, which is contrary to the goal of presenting a strong, evidence-based argument.

C) Replace by addressing with if we would address

This option is incorrect because it alters the meaning of the original sentence. "If we would address" implies a conditional situation rather than a direct statement about a solution, losing the urgency and clarity of the original message.

D) Replace problem with problems

This option is incorrect as it unnecessarily changes the singular noun "problem" to the plural "problems." The original context refers specifically to the overarching issue of food waste, and changing it could lead to ambiguity about whether multiple issues are being addressed.

Conclusion

Option A is the most effective choice as it not only clarifies the source of the assertion but also strengthens the overall argument concerning energy savings from reducing food waste. The other options either dilute the message or misrepresent the original intent, making them less suitable for conveying the importance of addressing food waste.