Which sentence contains an error in word usage?
A) The entire church winced when the organist started the song on the wrong chord.
B) Jon was surprised when it did not take him long to learn three cords on the guitar.
C) In the interview, the person trying out for the job did not strike the right chord with the CEO.
D) Franciscan monks in medieval times did not wear belts, but simply ropes or cords tied around their waist.