Which one of the following is in the correct sequential order in which these appeared under simulated primitive earth condition

(a)

Methane, Hydrogen cyanide, nitriles, aminoacids

(b)

Hydrogen cyanide, methane, nitriles, aminoacids

(c)

Aminoacids, nitriles. Hydrogen cyanide, methane

(d)

Nitriles, aminoacids, methane, Hydrogen cyanide