Answer:
Su
Explanation:
"Mama" is within the 'él, ella, Ud.' box, making the possessive adjective su.
A. Se llama Miguel is the answer
Limpio la casa todos los dias pero tengo una alergia
Mi abuelo es argentina is incorrect because abuelo means grandfather, who is obviously a male, and the adjective argentina is used to denote feminine gender because it ends with -a. Instead, if you want to correct this sentence, you should write the adjective in masculine form (ending with -o).
So, it should go like this:
Mi abuelo es argentino.
