Which of the following is an invalid variable? Question 14Answera.1varb._var_c.var2
Question
Which of the following is an invalid variable? Question 14Answera.1varb._var_c.var2
Solution
The invalid variable among the options is "1var". In most programming languages, variable names cannot start with a number. They must start with a letter or an underscore. Therefore, "1var" is invalid while "var" and "var2" are valid.
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