Which of the Following Best Describes the Role of the Chloride

Which of the following best describes the role of the chloride atom in the nucleophilic acyl substitution reaction of an acid chloride?

A) Its high electronegativity draws electron density away from the carbonyl,making it more electrophilic.
B) Its high electronegativity makes it effective at carrying negative charge and makes it a good leaving group.
C) Its easily protonated by acid makes it an effective electrophile for acid catalyzed reactions.
D) Its high electronegativity draws electron density away from the carbonyl and makes it effective at carrying negative charge,making it more electrophilic.