Which statement would NOT be valid in the driver class?

public class Employee$\{$

$//$code here $\}$

public class Manager extends Employee$\{$

$//$ code here $\}$

A$.$ Manager $m1=$ new Employee$()$;

B$.$ Manager $m2=$ new Manager$()$;

C$.$ Employee e $2=$ new Manager$()$;

D$.$ Employee e$1=$ new Employee$()$;