WMC Resources Limited was an Australian diversified mining and fertiliser company .Thus, option B is right.

Western Mining Corporation (WMC) is a multinational company that belongs to Australia. Let's delve into the reasons behind this answer.

Reason 1: Historical Background
WMC was established in 1933 as a gold mining company in Kalgoorlie, Western Australia. It initially operated solely within Australia, focusing on gold mining activities. Over time, the company expanded its operations to include other metals such as copper, nickel, and uranium, both in Australia and internationally.

Reason 2: Headquarters and Operations
The headquarters of WMC is located in Melbourne, Australia. This indicates that the company has its central management and decision-making structure in Australia. Additionally, WMC has significant mining operations and projects based in various regions across Australia, including Western Australia, Queensland, and South Australia. These operations contribute to Australia's economy and workforce.

Reason 3: Australian Ownership and Control
WMC is primarily owned and controlled by Australian entities. For instance, during its existence, the majority of WMC's shares were held by Australian individuals, institutional investors, and Australian superannuation funds. The Australian ownership and control further solidify WMC's classification as an Australian multinational company.

Reason 4: Australian Government Regulation and Support
As an Australian multinational company, WMC operates within the legal framework and regulations set by the Australian government. The company adheres to Australian laws related to mining practices, environmental protection, labor rights, and corporate governance. WMC also benefits from government support, such as tax incentives and subsidies provided to the mining industry in Australia.

Conclusion
Considering the historical background of WMC, its headquarters and operations in Australia, Australian ownership and control, as well as the company's adherence to Australian regulations and government support, it is evident that Western Mining Corporation (WMC) belongs to Australia.