Mashaal Masha
In studying whether jellyfish sleep, researchers Michael Abrams, Claire Bedbrook, and Ravi Nath attempted to answer three questions. ______ is there a period each day when the pulse rates of jellyfish decline? Second, do jellyfish respond more slowly to stimuli during that period? Finally, if prevented from sleeping, are jellyfish adversely affected?
Which choice completes the text with the most logical transition?
Difficulty: Easy
A: 

As a result,

B: 

First,

C: 

Additionally,

D: 

However,

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