Why acetic acid is called a weak acid though there are 4 $\mathrm{H}$ atoms in the molecule?

Identify the nature of the following aqueous solutions (whether acidic, basic or neutral)
(a) Solution A: $\left[{\mathrm{H}}^{+}\right]<\left[{\mathrm{OH}}^{-}\right]$
(b) Solution B∶$\left[{\mathrm{H}}^{+}\right]>\left[{\mathrm{OH}}^{-}\right]$
(c) Solution C∶ $\left[{\mathrm{H}}^{+}\right]=\left[{\mathrm{OH}}^{-}\right]$