Which of the Following Statements Is True

Which of the following statements is true?

A) Pure arbitrage involves buying blocks of securities in anticipation of some information release.
B) Risk arbitrage involves buying an asset in one market at one price and selling it immediately in another market at a higher price.
C) Risk arbitrage involves buying blocks of securities in anticipation of some information release, pure arbitrage involves buying an asset in one market at one price and selling it immediately in another market at a higher price and program trading is associated with seeking a risk arbitrage between a cash market price and the futures market price of that instrument.
D) None of the listed options are correct.