You have the following spot bid and ask rates between the Russian ruble (RUB), the Australian dollar (AUD), and the Mexican peso (MXN): Bid Ask MXN 0.2681/RUB MXN 0.2707/RUB AUD 0.0217/RUB AUD 0.0219/RUB MXN 12.884/AUD MXN 13.014/AUD Which of the following is the closest to the arbitrage profit that is possible at these rates? O a. 3.18% O b. 6.31% Oc2.65% O d. 3.62% e 3.28%