The use of submarines on the high seas to sink any and all enemy ships of Germany (

A. Unrestricted submarine warfare

O

B. internationally banded war tactic

C. totally inefficient use of war material

O

D. resulted in few deaths

A. Unrestricted submarine warfare

Explanation:

The use of submarines on the high seas to sink any enemy ships of Germany is "Unrestricted submarine warfare."

This was a declaration made by the German government in February 1915, concerning the waters surrounding Great Britain which was declared a war zone. The declaration was to destroy any German enemy's warship in the area.

pepin the short[a] (german: pippin der kurze, french: pépin le bref, c. 714 – 24 september 768) was the king of the franks from 751 until his death. he was the first of the carolingians to become king.[b][2]

the younger son of the frankish prince charles martel and his wife rotrude, pepin's upbringing was distinguished by the ecclesiastical education he had received from the monks of st. denis. succeeding his father as the mayor of the palace in 741, pepin reigned over francia jointly with his elder brother carloman. pepin ruled in neustria, burgundy, and provence, while his brother carloman established himself in austrasia, alemannia and thuringia. the brothers were active in suppressing revolts led by the bavarians, aquitanians, saxons, and the alemanni in the early years of their reign. in 743, they ended the frankish interregnum by choosing childeric iii, who was to be the last merovingian monarch, as figurehead king of the franks.

d is the best answer for this question.