Final answer:
The correct answer is 'A. iba.' The question is asking about a repeated action in the past, which is expressed using the imperfect form of the verb 'ir.'
Step-by-step explanation:
The correct answer is A. iba.
The question is asking whether the person went to church every Sunday, which indicates a repeated action in the past. This requires the use of the imperfect form of the verb ir. The imperfect form of ir in the second person singular (tú) is iba.
For example, to say 'You used to go to church every Sunday,' in Spanish, we would say 'Tú ibas a la iglesia todos los domingos.'
Learn more about Using the imperfect form of the verb 'ir' in Spanish to express repeated actions in the past