Which of the following is a valid variable name in Python...
Which of the following is a valid variable name in Python?
my_variable$
my_variable
my-variable
1my_variable
Correct answer is B
Variable names in Python must start with a letter or underscore, and can only contain letters, numbers, and underscores. The other options are invalid because they either start with a number (option C) or contain a special character (option D).
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