This question is for my Introduction to business class. thanks!

One difference between B2C and B2B e-commerce is that A) The B2B transaction involves little or no negotiation. B) The B2C transactions tend to be smaller when compared to B2B. C) The B2C transaction typically involves extensive and careful research while the B2B transaction tends to be less rational. D) The B2C transactions tend to be larger when compared to B2B