Replacing damaged electrical cords is not a strategy to prevent falls.
Volleyball, and Baseball because you need to have power. In volleyball you need power to spike the ball. You need power to hit the ball in baseball.
I think it is C, since it sounds the most reasonable.
Nutrient-dense foods are rich in nutrients relative to their calorie content. These include various healthy foods such as whole vegetables, fruits, cocoa, seafood, eggs and liver.