Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

A) The term "blockchain" reflects the fact that Bitcoin's payment system that operates like a chain-link fence, in that outsiders can view transactions but cannot reach with them.
B) The phrase "double-spending" first arose because early online businesses used programs that were unreliable and often billed a customer twice for the same goods.
C) The term "spyware" became popular after an early group of hackers discovered that they were all interested in international espionage and intrigue.
D) The term "spam" reflects the fact that many of the people who first developed online commerce realized that they could work from any location, and chose to live in Hawaii, where Spam, a tinned ham byproduct, is curiously popular.
E) The term "phishing" is taken from the term "phreaking" which was used to designate a clique of early hackers said to be "phone-freaks".