Which Australian region includes Yarra Valley and is close to Sydney and Melbourne?

The correct answer highlights the significance of the Barossa Valley as a renowned wine region in Australia, though it isn’t accurate in terms of proximity to Sydney and Melbourne.

The Yarra Valley is situated in Victoria, close to Melbourne, and is part of the broader wine region of Victoria, but it is not located in the Barossa Valley, which is in South Australia. The Barossa Valley is well-known for its Shiraz wines and has a rich winemaking heritage, but it is farther from Sydney compared to the Yarra Valley.

Recognizing the close tie of Yarra Valley with Melbourne is crucial, as it is easily accessible from there, making it a popular destination for wine tourism. The other options, such as Adelaide, Margaret River, and Great Southern, pertain to different regions and are not directly associated with Yarra Valley's proximity or its affiliation with major Australian cities like Sydney and Melbourne. Understanding these geographic distinctions helps illuminate the dynamics of Australian wine regions and their locations.