The following are some statements regarding dissociation of lime stone according to the equation 

$\begin{array}{c}{\mathrm{CaCO}}_{3\left(\mathrm{s}\right)}\rightleftharpoons {\mathrm{CaO}}_{\left(\mathrm{s}\right)}+{\mathrm{CO}}_{2\left(\mathrm{g}\right)};\\ \mathrm{\Delta H}=110\mathrm{k}.\mathrm{J}.\end{array}$

the reaction is carried in a closed vessel.

A) The pressure of CO₂ increases when temperature is increased.

B) The pressure of CO₂ increases when temperature is decreased.

C) The pressure of CO₂ remains same when volume of vessel is halved.

The incorrect statements are