Which of these events that occured in the soviet union was a direct cause of the other three

The event that occurred in the soviet union that was a direct cause of the other three is :

- The implementation of five-years plan

This implementation of five-years plan became a direct cause for : 
1. Famine in Ukraine
2. establishment of collective farm
3. development of heavy industry

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Which one of what is there a picture so I can help