class $A$ is superclass of class $B.$ Method $c()$ is defined in both classes $($overridden$)$

What happen to the following code?

A obj $=$ new B$()$;

B$.$c$()$;

syntax error, type mismatch for obj

class A$\text{'}$s version of method c$()$ is executed then class B$\text{'}$s version of method c$()$ is executed

class A$\text{'}$s version of method c$()$ is executed

class B$\text{'}$s version of method c$()$ is executed