Drivers who talk on their phone while driving pose a significant risk to pedestrians and other motorists and should therefore be punished.
Drivers who talk on their phone with driving pose a significant risk to pedestrians and other motorists and should therefore be punished.
Drivers who talk on their phone in driving pose a significant risk to pedestrians and other motorists and should therefore be punished.
Drivers who talk on their phone driving pose a significant risk to pedestrians and other motorists and should therefore be punished.
I want to know how they are different in meaning semantically, or if needed logically. And if there is something which does not make sense, please explain it why it does if you can.