Natural selection is a process by which organisms that are better adapted to their environment tend to
Answers
Natural selection is a process by which organisms that are better adapted to their environment tend to -survive and reproduce in greater numbers, allowing these favorable traits to be passed on to the next generations.
Rationale behind not choosing other options:
A. Better adaptation to an environment doesn't lead to an increase in the size of the organisms. The organisms rather become sturdy and efficient at perform optimally as per the requirement in the environment for their survival.
B. Migration takes place to minimize competition for food, shelter, and space in an environment or a habitat.
C. Organisms that evolve new traits tend to better survive in an environment and natural selection favors such organisms over the inefficient ones.