Which of the following variable names is correct?Question 6Answerint.ageAll variable names are wrongint(Age)_intAge

Break Down the Problem

1. Identify the variable names provided.
2. Determine the rules for valid variable naming in programming.

Relevant Concepts

1. Variable names must follow specific rules, such as:
   • Must start with a letter or underscore.
   • Cannot contain spaces or special characters (except underscores).
   • Cannot start with a digit.
   • Generally, reserved keywords (like int) should not be used as variable names.

Analysis and Detail

1. int.age: Contains a period, which is not allowed.
2. All variable names are wrong: This needs to be evaluated based on the other options.
3. int(Age): Contains parentheses, which is not allowed in variable names.
4. _intAge: This is valid; it starts with an underscore and contains no illegal characters.

Verify and Summarize

• Evaluating each name shows that _intAge is the only correct variable name.

Final Answer

The correct variable name is _intAge.