The correct answer is C. By using stack segment register.
The stack segment register (SS) is a processor register that contains the base address of the stack segment. The stack segment is a region of memory that is used to store data that is accessed frequently, such as local variables and return addresses. The stack is organized as a last-in, first-out (LIFO) data structure, which means that the last item that is pushed onto the stack is the first item that is popped off.
The SS register is used to access the stack by the processor. When a program needs to access a value on the stack, it first loads the SS register with the base address of the stack segment. The processor then uses the SS register to calculate the address of the desired value on the stack.
The other options are incorrect because they do not refer to registers that are used to access the stack. The code segment pointer (CS) register is used to access the code segment, which contains the program's instructions. The data segment register (DS) register is used to access the data segment, which contains the program's data. The heap segment register (HS) register is not used in most operating systems.
