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
Which of the following is commonly responsible for toxic shock syndrome in a female who is a tampon user? 
Select and explain. 
A. Streptococcus-group B, B. Pseudomonas, C. H. influenzae, D. Staphylococcus aureus
D: Staphylococcus aureus
Answer: D: Staphylococcus aureus 
Explanation: Toxic shock syndrome (TSS) is a entity caused by exotoxins produced by the ubiquitous aerobic gram-positive coccus, Staphylococcus aureus. TSS is associated with the use of highly absorbent tampons. The cause of toxic shock syndrome is preformed toxins produced by S aureus after colonization or infection by this microorganism. A pyrogenic toxin induces high fever and may enhance susceptibility to endotoxins that cause shock as well as liver, kidney, and myocardial damage. Ref: Mackay G. (2013). Chapter 43. Sexually Transmitted Diseases & Pelvic Infections. In A.H. DeCherney, L. Nathan, N. Laufer, A.S. Roman (Eds), CURRENT Diagnosis & Treatment: Obstetrics & Gynecology, 11e.