Option B, The combination of organic compounds in warm salty water.
Explanation:
Primordial soup also known as prebiotic broth is actually a hypothetical term that is used to represent the climatic and geophysical conditions prevailing some 4 billion years ago.
This theory states that the life originated in some water body (that can be a pond or ocean) as a result of various combinations between the chemicals from the atmosphere and some form of energy to produce amino acid which then led to the evolution of species.
Explanation: Saturated fatty acids have single carbon-to-carbon bonds. Therefore, saturated fatty acids have straight structures while unsaturated fatty acids have bent structures. Saturated fatty acids are solid at room temperature and unsaturated fatty acids are liquid at room temperature.