Which part of the name of document indicates the program that was used to edit it

Ou listened to a song on your computer. did you use hardware or software?

After you clean an engine with hot water spray, it seems to stall; when it doesn't stall, it's idling noisily. technician a says to check for loose bolts on the flex plate near the torque converter. technician b says to wipe down the spark plug wires and the distributor cap. who is correct? a. technician a b. both technicians a and b c. technician b

In my email i got a message it says a quick message and in message details on who its from its says nicole and under nicole is [email protected] -