The connection between the Nuclear Non-Proliferation Treaty (NNPT) and the Strategic Arms Reduction Treaty (START) is as follows:
A. START fulfilled the commitment the United States had made in the NNPT.
1. The Nuclear Non-Proliferation Treaty (NNPT) aimed to prevent the spread of nuclear weapons and promote disarmament.
2. The Strategic Arms Reduction Treaty (START) focused on reducing the number of strategic nuclear weapons between the United States and the Soviet Union/Russia.
3. START contributed to fulfilling the disarmament commitment outlined in the NNPT by reducing nuclear arsenals and promoting arms control.
Therefore, option A is the correct answer, highlighting the connection between the two treaties where START aligned with the goals set forth in the NNPT by reducing strategic nuclear weapons.