Gstr 1 query

Dear Sir, While filing gstr 1, whether local Sales @ 0% (nil Rate) to Registered dealers , to be shown under which head. Whether under 1) 4A, 4B, 4C, 6B, 6C - B2B Invoices or under 8) Nil rated, exempted and non GST outward supplies. …….Similarly, under which head ,Local Purchase from Unregistered dealers at nil Rate (0%) , to be shown in GSTR 3B. Please clarify both queries. Thank You