Which of these statements regarding the origin of life is false?

(a) Life originated on an Earth whose atmosphere contained high levels of oxygen.

(b)Miller and Urey obtained amino acids and other organic molecules when they sent electric sparks through a model of Earth’s early atmosphere.

(c) The first genes were probably made of RNA.

(d)When certain lipids are added to water, they spontaneously form structures that resemble cell membranes.