Yes, I can confirm that option C. Attracted military bases to be installed across the state is the most accurate answer regarding the impact of Georgia's temperate climate on its development.
Georgia's favorable climate has indeed attracted military installations, as it allows for year-round training and operations. The state is home to several military bases, such as Fort Benning, Fort Stewart, and Robins Air Force Base, which benefit from the temperate climate.
In contrast, the other options—diminishing crop production, encouraging emigration, or decreasing tourism and population—are not accurate impacts of Georgia's temperate climate. The climate actually supports a robust agricultural sector and tourism industry, rather than hindering them.