Unpackaged prepared food that requires no additional preparation before service may be

Sushi restaurants that serves fresh sushi.
Seafood restaurants that grabs alive seafood and cooks them on the spot.

Crisp nourishment eateries like sushi eateries, if it's not made the second the server says what the client needs, they can get sustenance harming. Some fish eateries have a period constrain on to what extent they can take to make nourishment. Same with metro and pastry shops, it must be new, no holding up.

The answer would be a.