Answer:
- Solidarity is created.
- Poland holds free elections.
- The revolution spreads to Hungary.
- The communist party dissolves itself in Hungary.
Step-by-step explanation:
The correct order of the given events is as mentioned above. Firstly, the 'Solidarity Movement' took place during the 1980s while the free parliamentary elections were carried out for the first time in Poland in June 1989. This was followed by the dissemination of the revolution and demand for civil resistance reached Hungary in around August 1989 and this revolution eventually led to the dismissal and dissolution of communist/socialist rule in Hungary in the same year. Thus, C-D-B-A is the correct sequence.