The correct answer is Program counter.

• Program Counter:
  • A program counter (PC) is a CPU register in the computer processor which has the address of the next instruction to be executed from memory.
  • It is a digital counter needed for faster execution of tasks as well as for tracking the current execution point.
  • A program counter is also known as an instruction counter, instruction pointer, instruction address register or sequence control register.
  • Similar to other process registers of the computer, the program counter is like a bank of binary latches, with each representing one bit of value.
  • The program counter works in combination with other registers to identify the current instruction.
  • It can be modified or accessed with the help of access or jump instructions.
  • The PC can be accessed/modified by jump and branch instructions.
  • Therefore, the destination address can be loaded to the program counter via branch instructions.
  • The program counter can also be loaded with the address using the data processing instructions.