Respuesta :
Answer:
B. Different sounds
Explanation:
The independent variable is the variable that changes. So B is the independent variable because the sounds are what change.
Different sounds are the independent variable. Hence, option B is correct.
What is the independent variable?
It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
The independent variable is the variable that changes.
So B is the independent variable because the sounds are what change.
Learn more about independent variables here:
brainly.com/question/1479694
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