Final answer:
The subject of this question is Spanish and the answer is 'baja' which means 'short' or 'low' in Spanish.
Step-by-step explanation:
The subject of this question is Spanish. María no es alta; es muy baja. In Spanish, the word 'baja' means 'short' or 'low'. So, the answer to the question is 'baja'.
Learn more about Question about Spanish vocabulary