While tuning a guitar, you realize one of the strings is not the right thickness. The pitch needs to be higher in order for the guitar to be tuned properly, so you replace the string with the correct version. Thickness is not the only thing that has an effect on pitch. How tightly the strings are stretched is also a factor. This is why guitar strings are attached to knobs that can be tightened or loosened. If, after replacing the string, the pitch is a little too high, how should you turn the knob to make it right? A. You should turn first one way, then the other.

B. You should turn the knob to loosen the string.

C. You should turn the knob to loosen the string.

D. You should turn the knob to loosen the string.