It is definitely not vacation: vacation would imply that the president is not at work, and the description above describes his work.
It's also not a judicial review, as it's something that the Supreme Court does, not the president.
The correct answer is: diplomatic relations! those refer to improving the relationships between the countries.
I'm sure the answer is William James.
Answer:
National heritage defines the critical moments in our development as a nation and reflects achievements, joys and sorrows in the lives of Australians. It also encompasses those places that reveal the richness of Australia's extraordinarily diverse natural heritage.