Assertion (A): An element in a Stack is removed from its Top.

Reasoning (R): The process of removing an element from a Stack is called pop.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Both A and R are true and R is the correct explanation of A.

Explanation
An element in a stack is removed from its top. The stack follows the Last-In-First-Out (LIFO) approach, where the last element added (the top element) is the first one to be removed. The process of removing an element from a stack is called pop.