The answer is A!
Ron is showing an invalid experimental placebo in this experiment due to the positive response.
goodluck, :)
A ruler or a meter stick depending on its length.....
B. It was an explanation for how the earth originated.
An autonomous car is a vehicle capable of sensing its environment and operating without human involvement. A human passenger is not required to take control of the vehicle at any time, nor is a human passenger required to be present in the vehicle at all. An autonomous car can go anywhere a traditional car goes and do everything that an experienced human driver does.