When must a program explicitly use the this reference?

Group of answer choices:

O When accessing a private variable

O When accessing a public variable

O When accessing a local variable in a method

O When accessing an instance variable in a method that has the same name as a method parameter

A program explicitly use the reference when accessing an instance variable that is shadowed by a local variable.

Explanation:

A local variable is a variable that is defined locally within the function. It cannot be accessed outside the function. The variables that are declared in the function can be used only within that function.

The local variables can be created with the same name in different functions. A program can explicitly use the reference when the field is shadowed by the local variable.

An instance variable is similar to class variable and it is defined in a class.