In which of the following arrangements the given sequence is NOT strictly according to the property indicated against it?

In the hydrides of Group 16 (${\text{H}}_2\text{O}$ to ${\text{H}}_2\text{Te}$), the acidic strength increases down the group because the $M-\text{H}$ bond dissociation enthalpy decreases.As acidic strength increases, the $K_a$ value increases and the $p{K}_a$ value decreases ($p{K}_a=-\log K_a$).Therefore, the correct order for increasing $p{K}_a$ is:
$${\text{H}}_2\text{Te}<{\text{H}}_2\text{Se}<{\text{H}}_2\text{S}<{\text{H}}_2\text{O}$$
The given sequence ${\text{H}}_2\text{O}<{\text{H}}_2\text{S}<{\text{H}}_2\text{Se}<{\text{H}}_2\text{Te}$ represents increasing acidic strength, but decreasing $p{K}_a$ values.