Consider the following pairs of political parties and the leader associated with founding them:

Party : Founding leader

1. Bharatiya Jana Sangh : Syama Prasad Mookerjee

2. Swatantra Party : Jayaprakash Narayan

3. Congress for Democracy : Jagjivan Ram

4. Socialist Party (1948) : C. Rajagopalachari

How many of the above pairs are correctly matched?