A standard is something that is always at a certain time of the day and is scheduled the same. A protocol takes priority of anything and everything else you work on.
#1 is A and #2 is B, but I don't know about #3 and #4.
The stick exerts a force on the puck; the puck exerts a force on the stick.
Answer:
I think it would be A, good luck!
Answer:
comment the choices please
