Respuesta :
The correct answer is letter C. The statement: Each of the contestants has their story to tell is is the most grammatically correct sentence that follows the correct rules of antecdent agreement. "Each" always requires a singular antecedent, while the subject "contestants," requires the correct pronoun "their" instead of "its."
The right anser is "B) All of the contestants have their story to tell."
Explanation: The pronoun and the antecedent must be in agreement. In this case, in the sentence: "All of the contestants have their story to tell". The pronoun is "their" so the antecedent, has to be a name in the plural, so that there is conconcordancia in the phrase. The antecedent is "Contestants" which is a plural noun. Thus "contestants" and "their" are in agreement.
I hope it helps.