I believe the answer will be D)
Explanation:
It’s simple. The younger the organism, the better it fights against viruses and diseases in general. As we age, our metabolism starts to slow down, and every condition is beginning to be harder and harder. Of course, genes play a big part, too. Not everybody ages the same. Thankfully, there are many things we can do to stop the process as much as we can — regular check up with doctors, physical activity, healthy nutrition, stress management, healthy sleeping pattern, are just a few ways.
Arrhythmia is the irregularity of heartbeats. A heart should beat just like seconds hand of a clock. Those who are the victims of arrhythmia experience fast or slow heartbeats very often. Some times arrhythmia don't cause any problem. They don't need any specific treatment. Some Arrhythmia is serious. A child with serious Arrhythmia needs a regular checkup. It is hard for such a child to participate in some sports activities. A child with serious arrhythmia may need medicines, Some regular test, radiofrequency ablation, a device or surgery.
