Answer:
yo = me
Ellas = they
Ud = you
èl = he
Nosotros = U.S
Uds = you
Ellos = they
Emily y yo = Emily and me
Él y ella = His and hers
Tù y yo = you and I
Tù y Ella's = you and them
AJ y Alex = AJ and Alex
Rachelle y Jessica = Rachelle and Jessica
Not sure if it's what your looking for but there you go.
B, haces because tú would make the ending es.
your answer is B Esta en la escuela, Esta with the little apostrophe above means, Is At, but esta without the apostrophe means, this one.
No, no me gusta jugar videojuegos. should be the answer.