Rheumatoid arthritis is an example of a disease that is:
AViral fever
BBacterial
CFungal skin
DAuto-immune
Answer & Solution
Correct answer: D. Auto-immune
1. The body attacks its own cells.
2. Rheumatoid arthritis is auto-immune.
3. The cause is genetic and unknown factors.
_Source: syllabus Biology, Chapter 8, Human Health and Disease._
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