As Referenced in the Case in the Text Involving Hewlett-Packard

As referenced in the case in the text involving Hewlett-Packard in the text,what is "pretexting"?

A) A practice whereby a person pretends to be someone else, typically over the telephone, in order to obtain information.
B) A practice whereby a person pretends to be someone else, typically through a personal visit, in order to obtain information.
C) A practice whereby a person induces someone, often an elderly person, to sign a contract purchasing unneeded services.
D) A practice whereby a person induces someone, often an elderly person, to sign a contract purchasing unneeded goods.