${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{COCl}\underset{{\mathrm{BaSO}}_4}{\overset{{\mathrm{H}}_2/\mathrm{Pd}}{\to }}\mathrm{A}$

${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{COOC}{\mathrm{H}}_3\underset{{\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\overset{\mathrm{DIBAL}-\mathrm{H}}{\to }}\mathrm{E}$

Correct statements regarding organic products A, B, C, D and E

I)  A, C, D and E are same compounds

II)  A and B are functional isomers

III)  Formation of A is Rosenmund reduction and formation of D is Stephen reaction