Which of the following is used to define a block of code in Python language?IndentationKeyBracketsAll of the mentioned

Break Down the Problem

1. Identify what constitutes a block of code in Python.
2. Analyze the options provided regarding code definition in Python.

Relevant Concepts

• Indentation: In Python, indentation is used to define the scope of loops, functions, classes, and conditionals.
• Key: This option is ambiguous without context; "key" typically does not refer to code blocks in Python.
• Brackets: These are used in various programming languages but not in Python for defining blocks of code.

Analysis and Detail

1. In Python, unlike other programming languages such as C or Java, indentation is essential for defining blocks of code. For example, the body of a function or loop is defined with whitespace indentation, making it visually clear where code blocks begin and end.
2. The term "Key" does not clearly relate to Python's code structure and does not act as a means to define code blocks.
3. "Brackets," such as { } and [ ], are not utilized for this purpose in Python; they are used for different data structures and specific operations.

Verify and Summarize

• Indentation is the definitive method within Python for denoting blocks of code.
• Other options are either irrelevant or incorrect in the context of Python syntax.

Final Answer

The correct option is Indentation.