Final answer:
In the given sentence, the correct imperfect conjugation of the verb 'ser' for 'tú' is 'eres'.
Step-by-step explanation:
In the given sentence, the verb is 'ser' which means 'to be' in English. The subject of the sentence is 'tú' which means 'you'. To conjugate 'ser' in the imperfect tense for 'tú', you would use the form 'eres'. Therefore, the correct answer is 'eres'.
Learn more about conjugation of the verb 'ser' in the imperfect tense