Many mosquito repellents contain natural components that work by activating multiple odor receptors on mosquitoes' antennae. As the insects develop resistance, new repellents are needed. Ke Dong and her team found that EBF, a molecular component of a chrysanthemum flower extract, can repel mosquitoes by activating just one odor receptor--and this receptor, Or31, is present in all mosquito species known to carry diseases. Therefore, the researchers suggest that in developing new repellents, it would be most useful to ______

Which choice most logically completes the text?

Question

Accepted Answer

identify molecular components similar to EBF that target the activation of Or31 receptors.

Answer

investigate alternative methods for extracting EBF molecules from chrysanthemums.

Answer

verify the precise locations of Or31 and other odor receptors on mosquitoes' antennae.

Answer

determine the maximum number of different odor receptors that can be activated by a single molecule.