To determine which response best supports the inference that advice to people who want to help bees will continue to change over time, we need to identify which option suggests that current understanding and methods of helping bees are still evolving or are under investigation.
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The first response about disease spread does not indicate a change in advice; it describes a potential situation without suggesting ongoing adaptation of practices or understanding.
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The second response mentions Algeria's investigation into plant diversity or culling plants, which implies that researchers are still exploring solutions. This suggests that our understanding of effective strategies may evolve based on new findings.
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The third response about the contribution of more bees and flowers to disease spread indicates a negative consequence of previous advice but does not explicitly suggest that the advice is changing over time.
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The fourth response describes a widespread encouragement to plant bee-friendly flowers but doesn’t imply that this advice is subject to change or investigation.
The best choice is "Alger is still investigating whether increasing plant diversity or culling certain plants could help decrease disease transmission." This response implies that researchers are still exploring the best ways to help bees, suggesting that the advice given to the public may evolve as new information becomes available. Hence, it supports the inference that guidance on helping bees will continue to change over time based on ongoing research and understanding.