Respuesta :
Cancer is a deadly disease that causes abnormal growth of the cell and disturbs the cell cycle. The tumors produced can be of many types and can be at various organs of the body.
The occurrence of lung cancer in subjects is not the potential extraneous variable for the stated hypothesis.
What is an extraneous variable?
- The variable that is not studied or investigated in the experiment but can affect the consequences of the results is called the extraneous variable.
- They are the outer factors that can potentially affect the results and in context with lung cancer includes exposure to passive smoke, the amount of smoke consumed and the duration of the smoking period of the subjects.
Therefore, option A is not the potential extraneous variable for the stated hypothesis.
Learn more about extraneous variable here:
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