Profile let's go with profile hope this helps
Renting can be an alternative to many people, especially those in areas where house prices are very expensive. The benefits to renting a home, however, are not mentioned in the given question, making the best answer (D) none of the above.
Some actual benefits that a person can gain are actually flexibility, since renting means that you can easily move from one place to another compared to buying a home, where you require capital and selling the previous home also falls into your responsibility, while rentals are managed by landlords.
Well think of it like this lets say this wasn't and security system and it was a video game console and remote.
Now the console or keypad or the main components the power on or shut off the devices and the remote or sensors are the secondary parts but they are needed to help the console or keypad figure out what they are doing.