Trade associations are responsible for all of the following except
a. providing training
b. providing health care
c. developing a sense of affiliation
d. advocating for their workers

Option B. Providing health care is the correct answer because trade association is an organization which is funded by the concern industry or firm. Basically, the purpose of these association is to formulate laws and information for the companies. However, its primary motive to provide various learning tools for the organization or businesses in a particular industry.

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.