This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Mycobacterium causing lung infection are   a) Mycobacterium Tuberculosis   b) Mycobacterium Kansasii  c) Mycobacterium Fortuitum  d) Mycobacterium avium intracellularae  e) Mycobacterium Scrofuloceuml 
Select and explain. 
A. abd, B. abc, C. acd, D. bcd
A: abd
Answer: A: abd 
Explanation: None