Answer:
I think the answer is architect because they design and build.
Explanation:
Bal stands for Bronchoalveolar lavage. Bal is a process in which a bronchoscope is passed through the mouth and then into the lungs. Fluid is squirted into a part of he lung and collected for examination. Lung diseases can be found from the process of bal.
Answer: d. all of the above.
Explanation: