choose the best spanish equivalent to the sentence below. rafael and estela have walked to the post office…

Brief Explanations:

The English sentence is in present - perfect tense. In Spanish, the present - perfect is formed with "haber" (in the appropriate form) + past participle. "Han caminado" is the correct present - perfect form of "caminar" (to walk) for the third - person plural subject "Rafael y Estela". "Tienen que caminar" means "they have to walk", "han caminando" is an incorrect form (the correct gerund form "caminando" is misused here), and "han caminandos" is an incorrect form.

Answer:

Rafael y Estela han caminado al correo.