Why do a majority of women have brakes that turn on according to the author?

Choices:
A. due to no desire
B. due to being hurt
C. due to stress
D. not enough information
due to stress
Emily Nagoski is a badass Ph.D. who teaches human sexuality. She wrote a book – Come As You Are. Here’s a secret: the entire sexology community was eager to get their mitts on her book, it was very exciting. I can’t recall the last time there was that much hullabaloo about one book.
In this important book, Dr Nagoski explains the interplay between sexual desire and stress — a concept that gives us a unique insight into what is going on in women’s sex lives.
THE ACCELERATOR AND THE BRAKES
This concept is a big deal. Think of the accelerator and the brake of a car. Each pedal acts independently from one another; you can press on the accelerator and you can stomp on the brakes. You can even press both at the same time. We don’t often press them at the same time – in fact, I was specifically told NOT to do that in driver’s ed – but anyhow, pretend you do. If you press both pedals all the way to the floor of the car, do you stop or go?
That’s right, you STOP!
Ok, now get this, your brake pedal is all the stress you have and your accelerator is your sexual desire. In the same way that the brake and accelerator of a car are two separate pedals yet also inextricably linked, so are your stress and your arousal. They are not the same things, yet have everything to do with one another.
If your stress level is high, the majority of women have brakes that turn on, meaning, no matter how much sexy stuff is going on around her, she does not want sex at all. It is like she is pressing down the brakes and the accelerator at the same time.
This isn’t the case for all women; some women have extremely sensitive brakes or extremely sensitive accelerators. And as Nagoski has found, while this correlation between stress and sexual desire is more common for women, men experience it too (just not quite as often).