An Australian investor wants to use A$1,000,000 or equivalent USD arbitrage fund and can chose between a risk-free 6-months Australian T-note with an annual return of 4% p.a, and a comparable U.S security with a return of 5% p.a. If the spot rate is AUD1.43/USD, the 6-months forward rate is AUD1.44/USD, and there are no transaction costs, according to covered interest arbitrage how much profit the investor can lock-in? (chose exact or the nearest amount)

a.AUD $7,833.56

b.USD 7,833.56

c.AUD 12,167.83

d.USD 12,167.83