One Researcher,Gregor Mendel,studied the Genetics of Pea Plants Related to Flower

One researcher,Gregor Mendel,studied the genetics of pea plants related to flower colors,pea colors,pea pod shapes and other features of the plant.He numerically modeled the results he observed and published results,which eventually led to our basic understanding of how biological traits are passed to new generations of organisms.This was before biologists had even identified DNA and chromosomes.His work,however was largely rejected for over thirty years,partly for minor record-keeping errors,and partly for the new approach of defining reproduction of organisms in terms of numerical probabilities.This demonstrates that

A) a unique new way to propose a theory, discredits the research until someone else proves findings to be true.
B) scientific evidence may still be accepted slowly, because of cultural biases and other understandings on the topic.
C) Gregor Mendel's work wasn't valid until researchers later identified chromosomes and their role in reproduction.
D) only the most recent scientific investigations on a topic are useful in understanding biological conditions or processes.