Why does cultural diffusion happen more quickly today than in previous centuries?
a.
early humans were not as interested in sharing their culture as they are today.
b.
advancements in transportation and communication make it easier to spread culture.
c.
all cultures around the world are very similar, making acculturation easier.
d.
fewer people are interested in assimilation today than in the past.

The second alternative is correct (B).

 The main difference is the speed and scope of information diffusion. Previously the information was limited, basically transmitted by printed newspapers and radio.

The main cause of current cultural diffusion is that today the world we live in is globalized. This was provided by the development of information and communication technologies, which in a way diminished the importance of geographical distances.

Today, everything is broadcast on the internet and on TV, including live. Markets are connected and people have access to distinct cultures through these instruments.

can you post options so i can ?

the real answer is b