Final answer:
Saudi Arabia and Australia have similarities and differences. They both rely on international trade,(option d) but have different dominant religions and languages.
Step-by-step explanation:
Saudi Arabia and Australia have some similarities and differences. While their dominant religions are different, as Saudi Arabia is predominantly Muslim and Australia is predominantly Christian, they both rely on international trade. Saudi Arabia is a major player in the global oil market, while Australia is a significant exporter of commodities such as iron ore and coal. Additionally, both countries have unique cultures and languages, with Saudi Arabia having a strong Islamic influence and Arabic as the native language, and Australia having a diverse cultural landscape with English as the predominant language.