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
Beta phage is seen in: 
Select and explain. 
A. Bacillus anthracis, B. Corynebacterium diphtheriae, C. Clostridium botulinum, D. Peptostreptococci
B: Corynebacterium diphtheriae
Answer: B: Corynebacterium diphtheriae 
Explanation: Ans. is. 'b' i. e. Corynebacterium diphtheriae