Answer:
Step-by-step explanation:
It is B, this is because your hard drive is the part of your computer that makes it work, and what helps run the maintenance software. there is no exact way of telling if your hard drive is going to fail.
On the other hand, your maintenance software can correctly determine which apps and widgets are drawing power, including your monitor screen. It can adjust the settings, or you can manually, so it draws less power.
It cannot determine humidity in your laptop or the amount of dust in your laptop, sadly.
Hope this helps!!^^