Which of the following statement is/are incorrect about the “National Pension Scheme for Traders and Self Employed (NPS-Traders)”?      
I.        The Government launched the National Pension Scheme for Traders and Self-Employed (NPS-Traders), in September 2019.    
II.        It is a voluntary and co-contributory pension scheme.   
III.        The traders in the age group of 18-40 years with an annual turnover, not exceeding Rs. 5 Lakh is eligible.  
IV.        An income tax payer, can’t join the scheme.