Answer the third and fourth questions for the following paragraphs.

RRR is a city wide delivery restaurant in zmir that takes registered customer orders via its web site. Basically, after taking an order, the order is transmitted to the kitchen and when the order is prepared, it is delivered to the address of the customer and payment is done with a credit card.

The restaurant RRR wants to develop its information system. It wants to learn if customers are infected with Covid 19 to change the restaurant's delivery process. Consider that RRR has the legal right to check the required data from "e-Nabz Personal Health System". If everything will be done digitally for this process,

3) Analyze the new system and write short feasibility report

4) For the relational database design of RRR, write the main data tables and their main fields and primary keys. Write query/question that needs "select, join and project" operations for the relational database of RRR