$15$ The 'main' method is declared 'static', so that

a$.$ The method needs to be associated with every object of the driver class

b$.$ There is a single exitance of this method even if multiple objects created of the driver class

c$.$ Java$($JVM$)$ can create an object of driver class and use the main method using that reference

d$.$ So that it can only be accessed from inside the driver class only

$16$ What would be the output of the following code:

a$.120$

b$.0$

c$.100$

d$.20$