The correct answer is (d) Vishakhapatnam.
An out port is a port that is located outside of the main port of a country. It is often used for transshipment, which is the process of transferring goods from one ship to another. Vishakhapatnam is a major port city in India that is located on the Bay of Bengal. It is the second largest port in India after Mumbai and is a major hub for trade and commerce.
The other options are incorrect because they are all located within the main port of India. Porbandar is a port city in Gujarat, Haldia is a port city in West Bengal, and Panaji is the capital of Goa.