Question

while salt and sodium are commonly conflated, table salt is actually a compound of sodium and chloride. ______ pure sodium is incredibly reactive, it forms new compounds almost immediately when its liberated by any natural process. thus, there is virtually no pure sodium in nature. however, when its pure form is artificially isolated, it appears as a soft - silvery white metal. which choice completes the text with the most logical transition? a although b because c even if d considering that

Explanation:

The first part of the sentence states a fact about table - salt being a compound of sodium and chloride. The second part says pure sodium is incredibly reactive. The relationship is causal, as the reactivity of pure sodium explains why there is little of it in nature. "Because" is used to show a cause - and - effect relationship. "Although" shows contrast, "Even if" is used for hypothetical situations, and "Considering that" is more for introducing a factor that is taken into account, but not as strong in showing cause - and - effect as "Because".

Answer:

B. Because