This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, Subject name: Microbiology
Sun ray fungus is 
Select and explain. 
A. Actinomyces irraeli, B. Chromoblastomycosis, C. Streptomyces griseus, D. Cryptococcus
A: Actinomyces irraeli
Answer: A: Actinomyces irraeli 
Explanation: Actinomyces colonies form fungus-like branched networks of hyphae. The aspect of these colonies initially led to the incorrect assumption that the organism was a fungus and to the name Actinomyces, "ray fungus" Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 391