In which of the following cases is the offence of cheating committed?

I. A, by falsely pretending to be in the civil services, intentionally deceives Z and thus, dishonestly induces Z to let him have goods on credit for which he does not mean to pay. II. A, by exhibiting to Z a false sample of an article, intentionally deceives Z into believing that the article corresponds with the sample and thus, dishonestly induces Z to buy and pay for the article. III. A intentionally deceives Z into belief that A has performed A’s part of a contract made with Z, which he has not performed and thus, dishonestly induces Z to pay money.