Let's analyze carefully:
Assertion (A): Integer class can be used in the program without calling a package.
✅ True. You can use Integer directly without an import statement.
Reason (R): It belongs to the default package java.lang.
✅ True. Classes in java.lang are automatically imported in every Java program.
Is Reason (R) the correct explanation of Assertion (A)?
✅ Yes. The reason explains exactly why Integer can be used without explicitly importing a package.
Answer: (a) Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of Assertion (A)