Select the correct answerWhich of the following operators can operate on a boolean variable? 1. && 2. == 3. ?: 4. +=Options1 & 43 & 21, 2 & 41, 2 & 3

To determine which operators can operate on a boolean variable among the options provided, let's analyze the operators one by one.

1. Identify Operators

1. &&: Logical AND operator that operates on boolean values (true/false).
2. ==: Equality operator that compares two values for equality and can be used with boolean values.
3. ?:: Ternary conditional operator which is used to choose one of two values based on a condition and can operate on boolean outcomes.
4. +=: This is an arithmetic assignment operator that cannot operate directly on boolean variables because it is meant for numeric operations.

2. Check Operability

• && operates on boolean values.
• == operates on boolean values.
• ?: operates on boolean outcomes.
• += does not operate on boolean values.

3. Conclusion

The operators that can operate on a boolean variable are &&, ==, and ?:.

Options Evaluation

Now, let's evaluate the options given:

• 1 & 4: Incorrect (includes +=)
• 3 & 2: Correct (3 includes ?: and 2 includes ==)
• 1, 2 & 4: Incorrect (includes +=)

Final Answer

The correct answer is 3 & 2.