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You have developed a language understanding model for a virtual assistant that can handle various intents such as 'book_flight', 'check_weather', and 'play_music'. You want to test the model's performance using a set of test data. Which of the following approaches should you use to evaluate the model's accuracy?_
A
Manually review the model's predictions for each test sample and compare them to the expected results.
B
Use a simple majority voting system to determine the model's predictions for each test sample.
C
Calculate the percentage of test samples for which the model's predictions match the expected results.
D
Measure the model's performance using a combination of precision, recall, and F1-score metrics.