Suppose that the following exchange rates are quoted in the foreign exchange market: [0.02/R]; [R12.50/S]; [$1.90/]. Assuming no transaction costs, if a trader starts off with R1, he/she can make a profit of approximately through arbitrage. [Round off calculations to two decimal places.] a) R0.04 b) R0.08 c) R0.40 d) R1.00 e) R2.00