Which statements are true? Select 4 options. An instance of a class cannot be changed after it is created.

Variables defined in the constructor of a class can be accessed by the main program that uses instances of the class.

A class variable can be a different type of class.

A class variable can be a list of instances of a different class.

Functions defined in a class are called methods.

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?