Reading - CAE - explanation of answer

Hi, I prepare myself for CAE exam. I try to do this Reading and I haven't found out yet why the answer is C)
It doesn't makes too much sense to me! Can someone help me, why the answer is C? possibly underline where is the answer.
Thanks a lot in advance!

This book examines how the ever-changing role of colour in society has been reflected in manuscripts, stained
glass, clothing, painting and popular culture. Colour is a natural phenomenon, of course, but it is also a complex
cultural construct that resists generalization and, indeed, analysis itself. No doubt this is why serious works
devoted to colour are rare, and rarer still are those that aim to study it in historical context. Many authors search
for the universal or archetypal truths they imagine reside in colour, but for the historian, such truths do not exist.
Colour is first and foremost a social phenomenon. There is no transcultural truth to colour perception, despite
what many books based on poorly grasped neurobiology or – even worse – on pseudoesoteric pop psychology
would have us believe. Such books unfortunately clutter the bibliography on the subject, and even do it harm.

What problem regarding colour does the writer explain in the first paragraph?
A Our view of colour is strongly affected by changing fashion.
B Analysis is complicated by the bewildering number of natural colours.
C Colours can have different associations in different parts of the world.
D Certain popular books have dismissed colour as insignificant