Which choice most logically completes the text?

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Subsequent to simulating an attack to elicit defense responses in three caterpillar species, ecologists placed a treatment group of those individuals in an enclosure where they were exposed to slight, harmless ambient electric field shifts like those created by common predatory wasps in flight. When exposed to the treatment, cinnabar moth caterpillars and scarce vapourer moth caterpillars remained coiled in a defensive position for an average of 71 seconds and 87 seconds, respectively, whereas European peacock butterfly caterpillars continued to flail defensively for 20 seconds. Meanwhile, in a control group, all individuals (from all three species) resumed neutral behavior in less than one-tenth of a second after the simulated attack. These results suggest that _____

some species of caterpillars are able to detect potential threats via changes in ambient electric fields.

in some caterpillar species, the type and duration of defensive responses to electric field shifts varies based on the size of the shifts.

European peacock butterfly caterpillars are more sensitive to changes in ambient electric fields than are cinnabar moth caterpillars or scarce vapourer caterpillars.

caterpillar species with the sensory acuity to detect small changes in ambient electric fields may also be able to cause shifts in those fields.