The answer is 4,
I once heard my pe teacher say that the answer is always all of above in health
Burning less than 400 calories per hour is not the correct about the benefit of swimming. So option “D” is the correct option. In reality a person burns between 450 to 900 calories per hour while swimming. Swimming actually helps in the full body exercise of a person. This proves that option “B”” is not applicable. Swimming is also a great exercise for cross country training and so option “C” also is removed. Option “A” cannot be applied for this question as maximum number of joints are supported by the water.
The answer to your question is B
