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: Microbiology
Pleomorphic bacteria is: 
Select and explain. 
A. Changing shape with time, B. Rod shaped structure, C. Dumble shape, D. Bacteria in clusters
A: Changing shape with time
Answer: A: Changing shape with time 
Explanation: Pleomorphic bacteria: Pleomorphic bacteria (e.g., Yersinia pestis) may show considerable variation in size and shape called pleomorphism.
Parija SC. Textbook of Microbiology & Immunology. Elsevier Health Sciences; 2014. Page:17