Given are cyclohexanol (I) , acetic acid (II), 2, 4 , 6-trinitrophenol (III) and phenol (IV) . In these the order of decreasing acidic character will be
A. `III gt IV gt II gt I`
B. `III gt II IV gt I`
C. `II gt III gt I gt IV`
D. `II gt III gt IV gt I`