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निम्नलिखित में से कौन सा एक इनवैलिड वैरिएबल है? , Which of the following is an invalid variable?
निम्नलिखित में से कौन सा एक इनवैलिड वैरिएबल है?
Which of the following is an invalid variable?
A. my_string_1
B. 1st_string
C. foo
D. _myvar
Correct Answer :
B. 1st_string
Explanation
Variable names should not start with a number.
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