Jolin wants to bet the Dow Jones index to go up throughout the day, i.e. she wants to buy an asset at the opening price and sell the same asset before the market closes. What types of financial assets can she trade? a) an ETF tracking the Dow Jones index. b) an index mutual fund following the Dow Jones index. c) an index option on the Dow Jones index. d) the Dow Jones Index e) a futures contract on the Dow Jones Index O a, b, c, d, e Obd O c, d, e O ac. O a, ce