What does the self keyword refer to in Ruby classes?

What is a class in Ruby?

A. A blueprint for objects

B. A variable holding multiple values

C. A single data structure

D. A method to define behavior

Which keyword is used to define a class in Ruby?

A. class

B. def

C. new

D. object

What does the initialize method do in a Ruby class?

A. Initializes class variables

B. Defines instance methods

C. Defines class methods

D. Initializes new objects

In Ruby, what is an object?

A. An instance of a class

B. A variable

C. A method

D. A module