This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
Which of the following is associated with atherosclerosis ? 
Select and explain. 
A. Chlamydia trachomatis, B. Chlamydia pneumonae, C. Chlamydia psittaci, D. Chlamydia gingivalis
B: Chlamydia pneumonae
Answer: B: Chlamydia pneumonae 
Explanation: Ans. is 'b' i.e., Chlamydia pneumonae o Epidemiologic studies have demonstrated an association between serologic evidence of C. pneumoniae infection and atherosclerotic disease of the coronary and other arteries.