What was the year of the creation of the Conselho Nacional do Trabalho? I- 1923 II- 1925 III- 1931 IV- 1937 a) Only I is correct. b) I and II are ...

What was the year of the creation of the Conselho Nacional do Trabalho?

I- 1923
II- 1925
III- 1931
IV- 1937
a) Only I is correct.
b) I and II are correct.
c) II and III are correct.
d) III and IV are correct.
e) Only IV is correct.