The answer is d. full-duplex transmission. This communication setup allows for simultaneous transmit and receive for both parties. As signals are able to be transmitted at the same time two way for both parties, for both directions along the same data carrier medium.
Based on my personal experience in the workforce, all of the above would be the correct answer. That's based off my experience though. Owners would regularly come in and talk to our managers and employees to make sure everything was kept in order and in compliance. The only other answer I could see fit would be supervisors. Hope I was able to help :)
Driving on under-inflated tires is very dangerous. If tires pressure is too low, too much of the tire's surface area touches the road, which increases friction. The more friction you have, the more heat is applied to the tires. Then, too much heat will make them overheat which can cause tread separation and, yes, blowouts. Therefore, the answer is true.
It can help you develop your leadership trait