The answer is vivo. Because it is talking about yourself and it doesn't say yo but it is implied.
Espero haberte ayudado!
This question can't be answered.
For this case we have the following dialogue:
Elena: ¿De dónde eres Carlos?
Carlos: Soy de Cuba y mis compañeros son de Estados Unidos. ____________________ son (They are) de Texas.
We note that we must translate the expression in parentheses to fill in the blank.
The expression in parentheses represents the third person of the plural.
For this case, the third person in the plural is male.
Therefore, the correct word is:
"Ellos"
The complete dialogue is:
Elena: ¿De dónde eres Carlos?
Carlos: Soy de Cuba y mis compañeros son de Estados Unidos. Ellos son (They are) de Texas.
Answer:
C. Ellos
