On laboratory investigation of a pork sample there is 1 dead trichinella detected in 24 sections. This meat should be:

Answer options

1. Frozen until the temperature of -10°C is reached in the deep layers, with subsequent exposure to cold for 15 days
2. Allowed for sale with no restrictions
3. Processed for boiled sausage production
4. Processed and sold through public catering network
5. Handed over for technical disposal