Suppose that some applications require using two stacks whose elements are of the same type. A natural storage structure of such a two-stack data type would consist of two arrays and two top pointers. a. Explain why this may not be a space-wise efficient implementation b. A better storage structure for a two-stack data structure would be to use a single array for the storage structure. Design a class for this two-stack data type. In your methods for the basic stack operations, the number of stack to be operated upon (1 or 2) should be passed as a parameter. Also, the push operation should not fail because of a stack-full condition until all locations in the storage array have been used. push (int stackNum, int value) int pop (int stackNum) boolean isFull () boolean isEmpty (int stackNum) void display(int stackNum)