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To conduct sentiment analysis there are several different approaches that can be used to categorize the polarization of the tweets ( as either positive or

To conduct sentiment analysis there are several different approaches that can be used to categorize the polarization of the tweets (as either positive or negative). To get the highest rate of accuracy, which type of model would probably be best?
Select one:
a. One that uses an unsupervised learning approach.
b. One that uses parts of speech tagging and sentence diagramming.
c. One that uses the bag-of-words approach.
d. One that uses only pre-defined rule-sets for classifying phrases as positive or negative.

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