B. You probably shouldn’t touch them when they’re so agitated
The most likely cause of death in 1900 would be pneumonia/influenza, while the leading cause of death in 2006 was heart disease. ... Heart disease and cancer were two of the most common causes of death in 2006.
Answer:B
Reason:it is balanced
The last on, tennis and volleyball because in tennis, you have to be able to serve and return with a lot of power, and in volleyball it is the same.