DRAW THE ERD DIAGRAM (ENTITY RELATIONSHIP DIAGRAM) , I NEED IT DRAWN WITH ALL THE ENTITY SETS , RELATIONSHIP , LINKS , ATTRIBUTES , CARDINALITIES AND OTHER CONTRAINTS. Consider the following extract from the case study COVID-19 variants: What's the concern? On average, it takes 56 days from when someone is infected with the virus for symptoms to show. However the incubation period of the virus can take up to 14 days. Viruses constantly change through mutation. When a virus has one or more new mutations it is called a variant of the original virus. Currently, the Centres for Disease Control and Prevention (CDC) has identified two variants of the virus (SARS-CoV-2) that causes coronavirus disease 2019 (COVID-19) as variants of concern: Draw an Entity Relationship (ER) Diagram to model the above scenario. Indicate all entities, attributes, relationships, cardinalities and other constraints on the diagram..