Number of tables required in above ER diagram will be _____________
Is $R_{1}$ create separate table or not?? and $R_{2}$ look like if we remove loop from it??
Answer given for table $E_{1}R_{1}$ Key will be $AC$ , with $C$ foreign key.
And for $E_{2}R_{2}$ Key will be $C$ and $C_{1}$ foreign key.
But I think $E_{2}$ itself $2$ Entities. So, it will add one extra table.
I already read https://gateoverflow.in/229580/madeeasy-test-series-number-of-tables-required