both a and b (i think...)
No. For example if a driver stops at green light and the driver to his rear hits him, it is the driver in front's fault.
It is generally the fault of the other person if you are hit in a front fender while making a turn on a green arrow. If you have the signal to make a turn, the other person generally does not have the green light as well.
Both of you ! The pedestrian is at fault for not obeying the traffic signals and you are at fault for not paying enough attention to what's around you while driving. A green light is not an automatic right to proceed - it's a priority signal !
left front is light gray(-) and tan (+) right front is light green (-) and dark green (+)
The car behind you
Car B would be at fault do to the fact that they failed to yield at a traffic light.
This question is very broad. More specifics are needed to determine fault. Who was turning left? Were you at a light, if so did you have a green turn arrow or light? Who had the right of way. Were there cars behind you, in front of you? What was your speed? Were there witnesses? Were the police called, is there a report? Were you cited or ticketed?
I'm sorry but you are. Green light left still yeilds to oncoming, only green arrow left does not have to yeild.
What ever car was turning is at fault unless they had a green arrow. you have the right away when it comes to 4 way stops with the turn lights.. if the turn light isn't on then they have to wait for you.
Normally, the green arrow would indicate that the opposing traffic has a red light and as such the green arrow traffic has right of way.However, due to mechanical or planning errors it is possible that the opposing traffic will also have a green light. If this happens, the opposing traffic (by virtue of going straight) has right of way. If this opposing traffic does not appear to be stopping, green arrow traffic should assume that opposing traffic has a green arrow and right of way. In the event of a collision when both have green, green arrow traffic (turning left) will be found at fault except in no-fault states where this will be considered a no-fault accident.
The car in the back is usually at fault in a rear end collision. The only exception would be if the car in front were backing up. The car in back is at fault for hitting you ,but if you are pushed into the car in front of you you are at fault for hitting that car.