Final answer:
The correct sentence is 'C Es la medianoche.'
Step-by-step explanation:
The correct sentence that means 'It is midnight' is C Es la medianoche. In Spanish, 'la medianoche' is used to refer to midnight. Option A, 'Son las cuatro' means 'It is four o'clock.' Option B, 'Son las siete en punto' means 'It is seven o'clock exactly.' Option D, 'Son las once de la mañana' means 'It is eleven o'clock in the morning.' Option E, 'Es la una de la tarde' means 'It is one o'clock in the afternoon.'
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