class A:

def

init

$($self$)$:

self.x $=1$

self.

$y=45$

def getY$($self$)$:

return self.

$y$

$a=A()$

print$($a$.$

y$)$

The program has an error because x is private and cannot be accessed outside of the class.

The program runs fine and prints $45.$

The program runs fine and prints $1.$

The program has an error because $y$ is private and cannot be accessed outside of the class.

The program has an error because you cannot name a variable using $\_-y.$