Explanation:

The term ‘liberty’ means the absence of restraints on the activities of individuals, and at the same time, providing opportunities for the development of individual personalities.

 Liberty, as elaborated in the Preamble, is very essential for the successful functioning of the Indian democratic system. However, liberty does not mean ‘license’ to do what one likes and has to be enjoyed within the limitations mentioned in the Constitution itself. In brief, the liberty conceived by the Preamble or fundamental rights is not absolute but qualified. Hence in the above question the most appropriate definition of liberty is to provide opportunity to develop oneself fully.