The correct answer is option 1, Adelaide. Viticulture refers to the cultivation of grapes for wine production, and Adelaide is known for its thriving wine industry. This city is located in the state of South Australia, which is home to several renowned wine regions such as the Barossa Valley, McLaren Vale, and Adelaide Hills. These regions have a Mediterranean climate that is favorable for wine production, with warm summers and mild winters.

Option 2, Darwin, is not known for viticulture. Darwin is the capital city of the Northern Territory and has a tropical climate, which is not suitable for growing grapes for wine production.

Option 3, Hobart, is also not known for viticulture. Hobart is the capital city of Tasmania, and while Tasmania has a growing wine industry, Hobart itself does not have a significant viticulture presence.

Option 4, Brisbane, is not known for viticulture either. Brisbane is the capital city of Queensland, and while there are some wine regions in Queensland, they are not as prominent as those in South Australia.