Which of the following is something that a histologist would NOT be expected to do?

• A. Utilize a light microscope to inspect a biopsy of suspected cancerous tissue to detect cellular abnormalities.  
• B. Prepare a sample of lung tissue using the Gram stain technique to identify presence of bacteria. 
• C. Conducting a cardiac tissue bypass surgery to replace damaged tissue & restore normal blood flow to heart.  
• D. Analyze cellular structure & ECM of a bone biopsy to help in diagnosis of osteoporosis.