A power supply unit (or PSU) converts mains AC to low-voltage regulated DCpower for the internal components of acomputer. ... Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the mains voltage.
<span>C. a scientific article</span>
Im pretty sure that the correct answer is Transition words.
Answer:
i dont really like music so sorry i cant help i hope someone can help you with this.
