Which of the following is one of Australia's three largest exports?

Education travel services is indeed a significant sector in Australia’s export economy, particularly as it represents a range of services provided to international students who travel to Australia for education. Over recent years, Australia has become one of the top destinations for international education, contributing substantially to the economy through tuition fees, accommodation, and living expenses contributed by these students.

The importance of this sector is recognized in the context of the broader service exports, which have been a growing area for Australia. However, it's essential to consider that Australia has other exports like natural gas, wheat, and gold, which are also substantial contributors to the export economy. Among these, natural gas and gold have consistently ranked as some of the largest components of Australia's export profile.

Understanding the scale and significance of education travel as an export helps to appreciate the diverse nature of Australia's economy and the blend of goods and services that contribute to its overall performance on the global stage.