Final answer:
Lamarck's evolutionary theory is best represented by the inheritance of acquired characteristics, meaning traits developed during an organism's life could be passed to offspring.
Step-by-step explanation:
The question pertains to the evolutionary theory proposed by naturalist Jean-Baptiste Lamarck. Among the options provided, the one that best represents Lamarck's ideas on the evolutionary process is B. Inheritance of acquired characteristics. Lamarck's theory posited that characteristics that are used more frequently become stronger and can be passed on to offspring, while those that are not used diminish. This principle suggested that acquired traits could be inherited by the next generation, a concept that indicates an organism can pass on features it has acquired throughout its lifetime.