Respuesta :
The word that best completes this sentence, "The human heart is responsible for pumping blood___ the body"
- B. Throughout
According to the given sentence, we can see that there is a statement about the function of the heart which is to pump blood throughout the body.
As a result of this, we can see that word that best completes the sentence is "throughout" as it shows that the blood goes around the body.
Therefore, the correct answer is option B
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