Crop rotation is wht they will use
Answer: have same question need the answer too lol
Explanation:
The answer is B. Celts.
- - -
Celts believed that collecting heads after a battle was one of the greatest honors. Heads were their trophies.
(A) He may have acted alone, although Austria-Hungary thought he was helped along by the Serbian government. ... (C) He was probably assisted by the Serbian government, which hoped that his actions would spark a world war and help Serbia gain independence.