The correct answer is option 4, Vishakhapatnam. Vishakhapatnam is a deep-water all weather sea port located in the state of Andhra Pradesh, India. Let`s analyze the other options to understand why they are not the correct answers.

Option 1, Kandla, is a major port located in the state of Gujarat, India. While it is a significant port, it is not a deep-water all weather sea port.

Option 2, Marmugao, is another major port situated in the state of Goa, India. Although it is a reliable port, it is not classified as a deep-water all weather sea port.

Option 3, Paradeep, is a port located in the state of Odisha, India. While it is a deep-water port, it is not an all weather port, meaning that it may not be operational in harsh weather conditions.

Therefore, the only option that correctly matches the description of being a deep-water all weather sea port in India is option 4, Vishakhapatnam. This port is well-equipped to handle all kinds of weather conditions and handle large vessels in deep waters.