contestada

When the Spaniards decided to conquer Mexico they appointed Hernan Cortes to lead the army. Which answer shows proper comma usage? When the Spaniards decided, to conquer Mexico, they appointed Hernan Cortes to lead the army. When the Spaniards decided to conquer Mexico, they appointed Hernan Cortes to lead the army. When the Spaniards decided to conquer Mexico they appointed Hernan Cortes, to lead the army. When the Spaniards, decided to conquer Mexico, they appointed Hernan Cortes to lead the army.

Respuesta :

The answer is:  [B]:
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      When the Spaniards decided to conquer Mexico, they appointed Hernan Cortes to lead the army.
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Answer:

When the Spaniards decided to conquer Mexico, they appointed Hernan Cortes to lead the army.

Explanation:

A comma separates an introductory phrase from the rest of the sentence. In this case the introductory phrase ends after Mexico. Imagine this question. When did they appoint Hernan Cortes to lead the army? The answer is when the Spaniards decided to conquer Mexico. The comma goes between the question and the answer.