Final answer:
The best answer that fits the context of the sentence is 'dificil'.
Step-by-step explanation:
The best answer that fits the context of the sentence is dificil.
Since it is mentioned that the Spanish class is easy, we are looking for an opposite adjective to describe the class. The word 'dificil' means 'difficult' in English, which is the opposite of 'easy', making it the best choice.
Therefore, the correct answer is dificil.
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