From his experiments. S.L.Miller produced amino acids by mixing the following in a closed flask
(A) \(\mathrm{CH}_{4}, \mathrm{H}_{2}, \mathrm{NH}_{3}\) and water vapor at \(800^{\circ} \mathrm{C}\)
B \(\mathrm{CH}_{3}, \mathrm{H}_{2}, \mathrm{NH}_{4}\) and water vapor at \(800^{\circ} \mathrm{C}\)
c \(\mathrm{CH}_{4}, \mathrm{H}_{2}, \mathrm{NH}_{3}\) and water vapor at \(600^{\circ} \mathrm{C}\)
D \(\mathrm{CH}_{3}, \mathrm{H}_{2}, \mathrm{NH}_{3}\) and water vapor at \(600^{\circ} \mathrm{C}\)