Which Australian agency is responsible for reviewing foreign investments?

The Foreign Investment Review Board (FIRB) is the correct answer because it is the designated agency in Australia that oversees and reviews foreign investment proposals to ensure they align with the country's economic interests. FIRB assesses applications for foreign ownership of assets and businesses, making recommendations to the government on whether these investments should be allowed, based on factors such as national interest and economic impact.

In contrast, the Australian Securities Exchange Limited (ASX) primarily focuses on securities trading and market operations, and does not handle foreign investment reviews. The Australian Taxation Office (ATO) deals with tax collection and compliance, which does not intersect with the review of foreign investments. The Australian Competition and Consumer Commission (ACCC) is concerned with competition and consumer protection laws, not specifically with assessing foreign investment applications. This delineation of responsibilities highlights why FIRB is the appropriate agency for reviewing foreign investments in Australia.