GSTR1- Column regarding exempted sale

Dear Sir/Man,
My assessee is dealing in bajra, matra and dal which is covered under exempted goods. Then, which column is required to be filled.

1. 4A, 4B,4C,6A,6Ccolumn... i.e., details of each and every bill which he sell to registered person.

or

2. 8A, 8B, 8C, 8D columnI.e., lump sum sale made to registered and unregistered.

or

3. Both.