Final answer:
The correct answer is A. fuimos. This form means 'we went' in the past tense.
Step-by-step explanation:
The correct answer is A. fuimos.
The sentence 'a la clase de español todos los días' indicates a past action, so we need to use the preterite form of the verb 'ir', which is 'fuimos' for the pronoun 'nosotros'. 'Fuimos' means 'we went'.
Option B 'íbamos' is the imperfect form of the verb 'ir' and means 'we used to go'.
Options C and D are both present tense forms of the verb 'ir', so they are not suitable for this sentence in the past tense.
Learn more about Preterite and imperfect verb forms in Spanish