Which of the Following Statements Reflects Why Cultural Evolution Is

Which of the following statements reflects why cultural evolution is more rapid than biological evolution?

A) Cultural evolution involves more genes than biological evolution, therefore the probability of mutations affecting cultural evolution is higher than the probability of mutations affecting biological evolution.
B) Bipedalism allowed individuals to move between multiple cultural groups early in human evolution
C) Culture can be transmitted through multiple, unrelated individuals at the same time. Biological evolution occurs through traits passed only from parent to offspring.
D) Cultural evolution is required for biological evolution to occur. If cultural evolution was not faster than biological evolution, biological evolution would not occur.