Los sectores de la oposición a Juárez Celman formados a mediados de 1889 (tiene opciones)
-La Unión Cívica
-El PAN
-La Federación Anarquista
-La Segunda Internacional

d

explanation:

i think that this is the best answer, but im sorry if this is wrong

first second and third

explanation:

1) the answer is b

senators serve a six-year term; representatives serve a two-year term, making them more responsive to (and responsible for) voter confidence.

2) the answer is d

to serve as president, one must:   -be a natural-born u.s. citizen of the united states;   be at least thirty-five years old;   be a resident in the united states for at least fourteen years.

3) the answer is a

ella,because it is constitutionally eligible

4) the answer is c: the u.s president