What is the difference between Audi A4's optional safety features?

I am considering purchasing an Audi A4 and I noticed that there are multiple safety features that are optional. Can you explain the difference between each feature and if it is worth the extra cost? Thank you!

Hi Natalie, the optional safety features on the Audi A4 include blind spot monitoring, lane departure warning, and adaptive cruise control. Blind spot monitoring uses sensors to detect vehicles in your blind spot and will warn you if it is unsafe to change lanes. Lane departure warning alerts you if you are drifting out of your lane without using a turn signal. Adaptive cruise control maintains a safe distance between you and the car in front of you while driving. These features can provide an extra layer of safety and convenience, but they do come at an additional cost. It is important to consider your driving habits and decide if these features are worth the investment for you.