Question

Which is an example of a Python naming rule for a variable?

a) Use numerals 1-100
b) Begin with a lowercase letter or underscore
c) End with a punctuation symbol
d) Use

Answer 1

In Python, variables should start with a lowercase letter or an underscore and cannot start with a numeral or contain spaces or punctuation symbols. So the correct answer is option B).

Step-by-step explanation:

An example of a Python naming rule for a variable is b) Begin with a lowercase letter or underscore. When naming a variable in Python, it must start with either a lowercase letter (a-z) or an underscore (_), and cannot begin with a numeral. Additionally, variable names can contain alphanumerics (A-Z, 0-9) and underscores, but they cannot contain spaces or punctuation symbols, and they should not be Python's reserved keywords or built-in functions.

One of the Python naming rules for a variable is to begin with a lowercase letter or underscore. This means that variable names cannot start with a numeral, such as 1-100, as mentioned in option a.

For example, valid variable names could be my_variable or _count.

The other options mentioned in the question, ending with a punctuation symbol (option c) and using any name (option d), are not correct according to Python naming conventions.