Answer:
teachers.
doctors/surgeons/dentists.
accountants.
lawyers.
engineers.
architects.
artists/authors.
designers.
El is singular and masculine and los is plural and masculine while la is singular and feminine and las is plural and feminine.
I hope you have the idea now.
In Spanish all things have a gender is a little confusing.
En 1673 empezo a derollarse en Masaya y no en Diriamba como se ha creido.
hope it'll help:)