Las maestras son unas personas inteligentes. (The teachers are smart people.)
Step-by-step explanation:
This sentence affirms that teachers, in general, have an above average intellectual ability. The word "teachers" refers to women who teach, whether in a school, university, or other educational setting.
The importance of the work of teachers in the education of people is recognized, since they are in charge of transmitting knowledge and skills to their students. Therefore, teachers are expected to have a high level of intelligence to be able to effectively fulfill this task.