The correct option is
A I- C, II- A, III- D, IV- B
Natural selection is the gradual process by which heritable biological traits become either more or less common in a population as a function of the effect of inherited traits on the differential reproductive success of organisms interacting with their environment. It is a key mechanism of evolution. The term "natural selection" was popularised by Charles Darwin.
Two ideas were incorporated in Lamarck's theory. The first was the theory of use and disuse, the idea that body parts used more often become stronger and larger, while parts not used slowly waste away and disappear. The second idea was the inheritance of acquired characteristics theory, the concept that modifications that occur during an organism's lifetime are passed on to its offspring. His example was the giraffe.
Laws of heredity were proposed by Mendel.
Oparin's hypothesis explains origin of life.
Therefore, the correct answer is option A.