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.
The answer is B spread it throughout an area
I may be wrong but from what I remember it should be D.) Revise the Articles of Confederation
The dogs during the pre 1800’s were not mainly seen as a
companion or a friend in which the society today claims. During this period,
the dogs are mostly seen as an animal who serves as hunting, herding and
protection to people.