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
[{'content': "pH of Sabouraud's Dextrose Agar is adjusted to: \nSelect and explain. \nA. 6-Apr, B. 2-Jan, C. 8-Jun, D. 10-Aug", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sabouraud Dextrose Agar (SDA) contains digests of animal tissues (peptones) which provide a nutritious source of amino acids and nitrogenous compounds for the growth of fungi and yeasts.\nThe pH is adjusted to approximately 5.6 in order to enhance the growth of fungi, especially dermatophytes, and to slightly inhibit bacterial growth in clinical specimens. High dextrose concentration and low pH favours fungal growth and inhibits contaminating bacteria from test samples.', 'role': 'assistant'}]