Which of the following is an invalid variable

MCQ Answer

Which of the following is an invalid variable?

निम्नलिखित में से कौन सा एक इनवैलिड वैरिएबल है?

Topic : Introduction to Python

A. my_string_1

B. 1st_string

C. foo

D. _myvar

Correct Answer is :

B. 1st_string

Explanation

Variable names should not start with a number.