The Best Treatment for a Common Cold Is Homeopathy, Which

The best treatment for a common cold is homeopathy, which is a form of alternative medicine. I know it's the best because my mother had a cold once, treated it with homeopathic medicines, and after a week she was completely recovered. Measles is also a nasty illness, one of the worst if you ask me. However, taking the medicine is not enough to be cured: one has to really want to be healed. People who never recover from their common colds are those who don't really want to be healed. In the few cases in which a homeopathic treatment does not prove its efficacy, it is usually due to the lack of a strong determination in the patient's psyche. Some people and so-called experts wrongly believe homeopathy is no better than a placebo treatment, but those people are liars.
Which of the following sentences does not belong in a well-organized paragraph?

A) The best treatment for a common cold is homeopathy, which is a form of alternative medicine.
B) Some people and so-called experts wrongly believe homeopathy is no better than a placebo treatment, but those people are liars.
C) Measles is also a nasty illness, one of the worst if you ask me.
D) However, taking the medicine is not enough to be cured: one has to really want to be healed.