To find out what a pronunciation symbol means we should look in the front of the dictionary, as stated in option C and further explained below.
Pronunciation symbols in dictionaries
When we look up a word in a dictionary, we find that word's entry and, right next to it, we find symbols that represent how that word is pronounced. However, if you do not know what those symbols mean, you should go back to the front of the dictionary.
Dictionaries bring a list of phonetic symbols and their meanings. That list appears at the beginning of the dictionary, that is, in the dictionary's front. That is why option C is the correct answer for this question.
Learn more about dictionaries here:
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