Yes, this is true, we should always give courtesy every time. We must give our courtesy to taxi drivers especially when it's moving. An angry driver may disturb traffic in the road. A lot of people are riding cabs to be from one place to another so it means they are important to us. However, if a driver did start to be uncourteous to people that is another situation.
I am pretty sure its Pittsburgh but I'm not completely sure.
The answer is C because I remember this from when I did it when I was younger
Grassland pasture and range uses
C. I know the answer because I’m part Jewish