The enolic form of acetone contains
9 sigma bonds, 1 pi bond and 2 lone pairs
8 sigma bonds, 2 pi bonds and 2 lone pairs
10 sigma bonds, 1 pi bond and 1 lone pair
9 sigma bonds, 2 pi bonds and 1 lone pair
∙∙ ∙∙O−H|CH3−C=CH2 has 9σ, 1π and 2 lone pairs.