An example of a state with an unwritten constitution is
Canada
India
Britain
France
Correct answer is C
An example of a state with an unwritten constitution is Britain.
An unwritten constitution is that which does not have its components or general provisions written down in one document. For instance, the British Constitution is primarily an unwritten constitution.
It should be noted that some parts of British Constitution are really written. e.g.
1. The Great Charter (1215) or Magna Certa.
2. The Petition of Rights (1628)
3. The Poor Law (1601)