Charles darwin
a. proposed natural selection as the mechanism of evolution
b. was the first person to conclude that organisms evolve
c. was the first to realize that fossils are remains of ancient organisms
d. proposed that unused parts of the body deteriorate
e. eagerly published his theory before it was well-developed

Option- A: Is the best option to choose from the given four, as we have the explanation given as below;

Charles Darwin: He was a British naturalist who proposed the theory of biological evolution by natural selection.The mechanism that Darwin proposed for evolution is natural selection.

Explanation:

Darwin’s process of natural selection has four components:

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

b. to discover aspects of the natural world.

hopefully i .