Which statement best defines the SITOR acronym "FEC"?

Correct Answer: Option A — Error correction for one-way TELEX broadcasts of weather or navigation information.

FEC is designed for one-way, point-to-multipoint transmissions, such as NAVTEX or meteorological broadcasts. Because the transmitter cannot receive acknowledgments from multiple unknown receivers, it uses time-diversity (sending characters twice) to ensure the message is correctly received despite potential radio interference or signal fading.