Large instruments produce low sounding notes while small instruments produce high sounding notes, this is because the size of the instruments is connected to the of the sound wave. *

Iwould think it would be efficiency.

B. conditioned response

Aself-report inventory  is a type of  psychological test  used in personality assessment. this type of test is often presented in a paper-and-pencil format or may even be administered on a computer. a typical self-report inventory presents a number of questions or statements that may or may not describe certain qualities or characteristics of the test subject.