<span>Mutations can bring about changes in appearance, structure, or function of many different areas, but many go unnoticed. Many of these changes are benign, some are advantageous, and some are negative. Some can be mixed (sickle cell anemia and malaria resistance).</span>
Intraspecific competition drives natural selection,as individual members of a species compete with each other for limited natural resources.
I believe the answer would be C. Traits that are acquired as an organism lives its daily life.