Select the correct option to test your answer: A Low NH 4 + , High Agar, High pH B High NH 4 + , High Agar, High pH C Low NH 4 + , Low Agar, Low pH D High NH 4 + , Low Agar, Low pH Correct Answer: Option D (High NH 4 + , Low Agar, Low pH) Verified correct option for Agriculture (Agricultural Biotechnology).