Which one of the following statements is relevant to multiple stacks in data structures?

$($a$)$ Stack is an important data structure which stores its elements in an ordered manner.

$($b$)$ A stack is a linear data structure which uses the same principle, i$.$e$.,$ the elements in a stack are added and removed only from one end, which is called the TOP.

$($c$)$ The stack is a very small one or its maximum size is known in advance, then the array implementation of the stack gives an efficient implementation.

$($d$)$ If the stack is allocated less space, then frequent OVERFLOW conditions will be encountered. To deal with this problem, the code will have to be modified to reallocate more space for the array.