Final answer:
The appropriate form of the verb 'ir' in the sentence 'Quiero comprar un vestido nuevo. A. Vayan B. Vamos C. Vaya D. Ve' al centro comercial. ¿Quieres?' is 'B. Vamos', which means 'Let's go' in English.
Step-by-step explanation:
The appropriate form of the verb ir in the sentence Quiero comprar un vestido nuevo. A. Vayan B. Vamos C. Vaya D. Ve al centro comercial. ¿Quieres?
The correct answer is option B. Vamos, which means 'Let's go' in English. This is because the sentence is expressing the speaker's desire to go and buy a new dress, so the form of the verb 'ir' that corresponds to 'we' is used.
Using option C. Vaya, which means 'he/she/you (formal) goes', would result in a mismatch in subject pronouns. Options A. Vayan and D. Ve do not correspond to the appropriate subject pronoun or form of the verb 'ir' given the context of the sentence.
Learn more about Spanish verb conjugation