In the Future, It May Be Possible to Screen for a Number

Multiple Choice

In the future, it may be possible to screen for a number of different types of cancer by a simple blood test.If a blood test indicates a very early stage of lung cancer, where is the most likely place that the tumor will be growing?

A) in the parietal pleural membrane
B) in the wall of a large bronchus
C) in the visceral pleural membrane
D) in the wall of an alveolus