D because I just took a test and got it right
All of the following are social and cultural barriers except the currency shifts.
Language, gift-giving traditions, religious attitudes are cultural barriers. Imagine that you are speaking Spanish and you want to offer a rosary to a chinese people. He will not understand at all the meaning of your gesture, your language and the religious value of the rosary.
The scientific community has their own definition of how the
natural world works and they had described that the natural world behaves in a
manner that is consistent and a way of having a manner that can be predicted or
is predictable with the use of given factors involving the natural world.