The correct answer is option 3: 3 2 4 1.

In this question, we are given a list of rivers (List I) and a list of seas (List II). The task is to match each river with the corresponding sea.

Let`s go through the options:

Option 1: 1 1 4 2 3

This option matches the first river, Volga, with Sea of Azov; repeats Sea of Azov for the second river, Dnieper; matches the third river, Rhine, with Black Sea; matches the fourth river, Don, with Mediterranean Sea; matches the fifth river (which is not mentioned), with Caspian Sea.

Option 2: 1 2 4 3

This option matches the first river, Volga, with Sea of Azov; matches the second river, Dnieper, with Black Sea; matches the third river, Rhine, with Mediterranean Sea; matches the fourth river (which is not mentioned), with Caspian Sea; matches the fifth sea (which is not mentioned), with no river.

Option 3: 3 2 4 1

This option matches the first river, Volga, with Caspian