Nhận biết (M1)

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?

• A.

  At that time,

• B.

  For example,

• C.

  In other words,

• D.

  However,