One of the Biggest Differences Between Culture and Other Forms

One of the biggest differences between culture and other forms of animal behavior is that in culture, it is learned and shared. Why is this so?

A) cultural behavior is not innate and it has to be learned
B) actually, all animal behavior is learned and shared
C) actually, there is no difference between culture and other forms of animal behavior
D) because cultural behavior requires writing to pass it to the next generation