Answer:
Confucianism is a good type of "soft power" because it is a very well structured system of ethical, moral, and even political beliefs.
In fact, China had a lot of soft power in the past because of the confucian organization of the Chinese state. Korean and Japanese states of the time had some confucian influences.
During the period of the crusades warfare between Muslims and Christians lasted nearly 200 years.
Hope this helps. :)
The answer to this question is A