The geographical locations of the sea ports were identified to establish their order from south to north:
- Valparaiso (D): Central Chile.
- Callao (C): Peru, north of Valparaiso.
- Colon (A): Panama, north of Callao.
- San Francisco (B): West coast of the United States, north of Colon.
The sequence from south to north is:
- Valparaiso (D)
- Callao (C)
- Colon (A)
- San Francisco (B)
The correct option is: (D), (C), (A), (B)