Which of the Following Statements Is LEAST-Likely to Be True

Which of the following statements is LEAST-Likely to be true?

A) When using extension cords, always plug the cord of the tool into the extension cord before the extension cord is inserted into a convenience outlet.
B) Extension cords should be long enough to make connections without being pulled taut, creating unnecessary strain and wear.
C) Extension cords should be checked frequently while in use to detect unusual heating.
D) Always unplug the extension cord from the receptacle after the cord of the tool is unplugged from the extension cord.