Which of the following countries would be unlikely to have a large maritime industries?
a) spain
b) italy
c) portugal - this is the wrong answer
d) austria

Option D => Austria.

Explanation:

Maritime industries or companies refers to companies or industries that deals with things relating to ships and vessels. Maritime companies or industries are one of the industries that are making the buying and selling of goods or products between countries possible.

Apart from the transportation purpose of Maritime industries, they are also involved in fishing and its processing.

For a country to have big Maritime industries it means that such countries must have access to the seas and oceans. From the option given Austria can not have a big Maritime industries because it has no access to the sea that is it is a landlocked country.