Consider the following pairs : |Party | Its Leader| |------- | --------| |1. Bharatiya Jana Sangh | Dr. Shyama Prasad Mukherjee| |2. Socialist Party | C. Rajagopalachari| |3. Congress for Democracy | Jagjivan Ram| |4. Swatantra Party | Acharya Narendra Dev| How many of the above are correctly matched?