Describe each of the people listed by providing the correct form of the verb ser and the appropriate form of the adjective indicated.

Modelo:
Jorge Ramos, conductor de Noticiero Univisión y líder latino (liberal)
Jorge Ramos es liberal.

1. Pablo Sandoval, jugador de béisbol profesional en Estados Unidos (atlético)
Pablo Sandoval

corras is the only one that is informal but doesn't follow the suffix rule. correr is the verb. corre is the formal verb form. corra would be used as the formal is corre ended with an a.

your best bet would be corras, it's the only one that is informal but is still wrong

these are the words to choose from to people answer the question:

nieta--yerno--tia--tio--primo--nuera--abuelo--cunada