Final answer:
The eastern edge of Australia is more temperate due to ocean currents and mountain ranges. A similar effect can be observed in the eastern coastal regions of South America.
Step-by-step explanation:
The eastern edge of Australia is more temperate due to a variety of geographical factors. The coastal regions on the eastern edge benefit from the influence of ocean currents, such as the warm East Australian Current, which helps moderate temperatures. Additionally, the mountain ranges along the eastern edge, such as the Great Dividing Range, provide a barrier to the hot and dry inland air masses, creating a more temperate climate.
Based on the provided map, the continent that could experience similar effects is c) South America. The eastern coastal regions of South America are also influenced by ocean currents, such as the Brazil Current, which helps maintain a temperate climate.