STD 12 - 8.2 Carboxylic acids and their derivative — NEET STD 11 Science — Question

[$A$] the physical state of $\mathrm{X}_2$ at atom temperature changes from gas to solid down the group

[$B$] decrease in $HOMO-LUMO$ gap down the group

[$C$] decrease in $\pi^*-\sigma^*$ gap down the group

[$D$] decrease in ionization energy down the group