Who were the "sea dogs"?

The sea dogs, as they were disparagingly called by the Spanish authorities, were privateers who, with the consent and sometimes financial support of Elizabeth I of England (r. 1558-1603 CE), attacked and plundered Spanish colonial settlements and treasure ships in the second half of the 16th century CE.

Explanation:

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.

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.