【单选题】

{{I}}Questions 17 to 20 are based on the following passage.At the end of the passage, you will be given 20 seconds to answer the questions. Now, listen to the passage.{{/I}} What makes the difference in making the brighter musical tone

A、The density of the wood of which the guitar is made.
B．The weight of the wood which the guitar is made.
C．The shape in which the guitar is made.
D．The way the guitar is playeD、