Here Is the Answer:
The answer is (b) stack. The stack is a memory region used by a process to store temporary data such as function parameters, return addresses, and local variables. It is a last-in, first-out (LIFO) data structure, meaning that the most recently added item is the first to be removed. The stack is an essential component of a process's runtime environment, as it plays a crucial role in managing function calls and returns, and in passing data between functions. It is allocated dynamically at runtime and released when the process terminates.