|Question 18Verbal

Source Texts

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While most animals prefer the safety of nighttime migration, many poisonous amphibians—a category that includes the red-bellied newt and the fire salamander—safely engage in migratory behavior during the day.        with the sun in the sky, the amphibians' striking color patterns deter visually oriented daytime predators by serving as a warning of toxicity.
Which choice completes the text with the most logical transition?
At that time,
A
For example,
B
In other words,
C
However,
D