With many elements, like bromine, scientists were able to isolate a relatively pure sample of the substance shortly after discovering its existence. __________ this wasn’t the case with all elements. The process of isolating europium, for example, took several years—five, to be precise.
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Verbal·Expression of Ideas·Transitions
hardWhich choice completes the text with the most logical transition?
A
For this reason,
B
Granted,
C
Likewise,
D
In other words,