Final answer:
The correct answer is Option D, 'Estuve.' It is the past tense form of the verb 'to be' and indicates that the speaker was sick all night.
Step-by-step explanation:
The correct answer to the question is Option D. Estuve.
This is the correct form of the verb 'to be' in the past tense for the first person singular (I) in Spanish. It indicates that the speaker was sick all night.
For example, you could say 'Estuve enferma toda la noche' which means 'I was sick all night.'
Learn more about Spanish verb conjugation