The correct answer is A) distraction.
The technique Jay is using to control his pain is "distraction."
When Jay feels so much pain, he focuses on his favorite music to distract his mind from the pain and use a new remedy. What he is doing is putting away the feeling of pain in order to focus on something he loves so much that is his music. Trying to distracting the mind while taking his medicine or trying new methods, is what helps him overcome the acute pain.
Answer:
Cannon barrels (the automatic weapon)
Leonardo was seriously concerned by the insufficiencies of contemporary warfare, especially irritated by the time between cannon fire shots, caused by the need for relocation. Leonardo devised a multi-barreled cannon to spin a line of cannons and recharge another: a precursor of the day modern machine gun.
Austin Dabney was an African American slave who fought against the British in the American Revolution and was later emancipated and given land for his bravery during the war.
Hope this helped!
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