Q:Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Balzam-class intelligence ship -  The Balzam class is the NATO reporting name for a class of Intelligence collection ships built for the Soviet Navy in the 1980s. These ships are also known as the Lira class. The Soviet designation was Project 1826.
A:
Mean Of Transportation