How do you define a class in Python?

A class in Python is defined using the class keyword, which is followed by the name of the class and a colon. This syntax is fundamental in Python and is essential for creating user-defined data types. The name of the class typically follows the convention of using CamelCase, which helps differentiate classes from functions and variables.

For example, when you define a class named MyClass, the definition would look like this:

class MyClass:

pass

This structure signifies the start of a class definition, and anything indented below the class definition represents the body of the class, where attributes and methods can be defined.

Understanding this syntax is crucial for effectively using object-oriented programming in Python, as classes are the building blocks for creating objects that encapsulate data and behaviors. The other options provided do not correctly represent the syntax needed to define a class in Python.