Nationwide Standardization of Time Became a Necessity for Which of the Following

Multiple Choice

Nationwide standardization of time became a necessity for which of the following reasons?

A) In the event of a national emergency, the military needed to be assured of a regularity of time from place to place.
B) Railroad scheduling required that there be a regularity of time from place to place.
C) Monetary transactions undertaken by the nation's leading financial institutions required a regularity of time from place to place.
D) The transfer of raw materials to factories and finished products to consumers requires a regularity of time from place to place.