❌ A.) 88
✅ B.) 188
Noosa Shire has 100+ roundabouts and 60k people. Canberra had 232 roundabouts in 2006 for 334k people in a compact urban setting. Putting it all together, Ipswich’s 188 looks sensible for a mixed urban–rural city.
(Source: We queried OpenStreetMap with https://overpass-turbo.eu/)
❌ C.) 288