Why does the teacher thank Rupa? Because Rupa _____

Detailed Explanation:

A Stack is a linear data structure that follows the Last-In, First-Out (LIFO) principle. This means that the element added most recently to the stack is the first one to be removed, similar to a physical stack of plates.

Analysis of Other Options:

            
• Queue: Operates on a First-In, First-Out (FIFO) principle, where the first element added is the first one to be removed.
            
• Array: A contiguous block of memory storing elements that can be accessed randomly by their index, without adhering strictly to LIFO or FIFO behavior.
            
• Linked List: A linear collection of data nodes linked via pointers, capable of supporting various insertion and deletion patterns depending on implementation.