Respuesta :
Answer:
B) Jon was surprised when it did not take him long to learn three cords on the guitar.
Explanation:
The sentence that has an error in usage is the following one: Jon was surprised when it did not take him long to learn three cords on the guitar. The word "cords" (which means basically "ropes") should be replaced with the word "chords" (which means "harmonious musical tones").