| Second Letter | Answer | % Correct |
|---|---|---|
| A | Cairo | Cape Town | Casablanca | Caracas | Campinas | 100%
|
| O | Colombo | Conakry | Cotonou | Columbus | Córdoba | 88%
|
| H | Chicago | Chittagong | Charlotte | Chonburi | Chelyabinsk | 83%
|
| L | Cleveland | 79%
|
| I | Cincinnati | Ciudad Juárez | Cirebon | 75%
|
| E | Cebu | 67%
|
| U | Curitiba | Cuernavaca | Cúcuta | Culiacán | 63%
|