Micca Metals, Inc. is a specialty and materials company located in Detroit. The company specializes in specific precious metals and materials that are used in a variety of pigment applications. Micca just purchased a shipment of phosphates from Australia for AUD6,000,000 payable in six months. Six months at the money call options on AUD6,000,000 at an exercise price of USD0.900/AUD1 are available at a premium of 3% What is the break even exchange rate?

a. USD0.8700/AUD

b. USD0.0900/AUD

c. USD0.9300/AUD

d. Cannot be determined