Which of the following port is a port classified on the basis of the type of traffic?

All of the above.

Generally, ports are classified according to the types of traffic which they handle. Types of port according to cargo handled:
(i) Industrial Ports: These ports specialise in bulk cargo-like grain, sugar, ore, oil, chemicals and similar materials.
(ii) Commercial Ports: These ports handle general cargo-packaged products and manufactured good. These ports also handle passenger traffic.
(iii) Comprehensive Ports: Such ports handle bulk and general cargo in large volumes. Most of the world’s great ports are classified as comprehensive ports.