The lesson states that "unos" and "unas" are both correct in front of a plural feminine noun beginning with a stressed a. The RAE says it isn't (https://www.rae.es/buen-uso-espa%C3%B1ol/el-art%C3%ADculo-ante-nombres-femeninos-comenzados-por-a-t%C3%B3nica), specifically citing "unos aulas" as incorrect.
It's a minor point, but where is the disconnect? Is the RAE being prescriptive here, or is something else going on?
The lesson states that "unos" and "unas" are both correct in front of a plural feminine noun beginning with a stressed a. The RAE says it isn't (https://www.rae.es/buen-uso-espa%C3%B1ol/el-art%C3%ADculo-ante-nombres-femeninos-comenzados-por-a-t%C3%B3nica), specifically citing "unos aulas" as incorrect.
It's a minor point, but where is the disconnect? Is the RAE being prescriptive here, or is something else going on?
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