In referring to figure "F" of the illustration, what statement is true concerning the functional purpose of the RC coupling? EL-0075 Illustration EL-0075: the U.S. Coast Guard has not released this illustration.

Correct Answer: Option C — The RC coupling functions as a filter by removing the DC component from the varying DC input to produce an AC output in phase with the input.

RC coupling networks block DC voltage levels while passing AC signal components without phase inversion, maintaining the signal completely in phase across the amplifier stages.