Answer – C. More than half
Alcohol is a key factor in more than half of all manslaughters, assaults, and murders. To be precise, Alcohol is a very important factor in up to 68 percent of manslaughters, 62 percent of assaults and 54% of murders and attempted murders.
I believe that it relates to or involves free oxygen, if it is used in exercise- aerobic practices help improve the the efficiency of the body's cardiovascular system with absorbing and transporting oxygen.
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During contraction, the filaments slide past he thick filaments, shortening the sarcomere. The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.
To improve her lifestyle, a teen gave up smoking.
or
To improve her lifestyle, a teen chose to give up smoking.