During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Based on your knowledge of natural selection and adaptation, which statement is most likely to be helpful in correcting this student's misconception?
a) Characteristics acquired during an organism's life are generally not passed on through genes.
b) Spontaneous mutations can result in the appearance of new traits.
c) Only favorable adaptations have survival value.
d) Disuse of an organ may lead to its eventual disappearance