Analise as afirmativas a seguir.

I. !$ \dfrac {100} {300} \, \times \, \dfrac {1} {3} \, = \, \dfrac {1} {9} !$

II. !$ \dfrac {40} {80} \, \times \, \dfrac {1} {2} \, = \, \dfrac {1} {4} !$

III. !$ \dfrac {120} {360} \, \times \, \dfrac {2} {3} \, = \, \dfrac {2} {9} !$

IV. !$ \dfrac {100} {400} \, \times \, \dfrac {1} {3} \, = \, \dfrac {1} {2} !$

Assinale a alternativa CORRETA.