D- it does not improve speed to agility
Although exercise is the best way to do that, there are other ways.
Practice controlled breathing exercises, which are easy to do from the comfort of your home.
One is where you take a few small breaths in and one large breath out. Keep doing this.
Breathing exercises are also relatively easy to find on the internet.
Well Olivia, Sophia, her older brother and his friend are in a bit of a pickle. I suggest Olivia and Sophia brake the computer, resulting in no one to be able to use it.