Answer: A. Cavalry
Explanation: The "blitzkrieg" is a military tactic that was created by the Germans during World War 2. Speed is a requirement as a blitzkrieg is meant to overpower the enemy before it has time to prepare for battle or receive aid from allies. Tanks and planes are also key components as they are powerful and maneuverable, which is also needed for a blitzkrieg to be successful. Cavalry is not, and never was, needed for a blitzkrieg.
Yes, they escaped Justice.
traveled to South America from there they traveled to Germany.
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B. an agreement to boycott all British imports
The reasons as to why Irish citizens immigrated was to escape religious and political persecution. The Irish Potato Famine was another reason for this because potatoes were the staple food at the time which forced peasants to leave Ireland.