A is the best answer. Hope that helped! If you don't understand why PM me and i can try to explain :)
Answer:
Tetanus, a bacterial disease affecting the nervous system, can develop from the bacteria. This is a serious condition. Puncture wounds from animal bites are the most likely to lead to tetanus
Explanation:
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The answer is viruses change their form when the immune system knows how to kill it and thats how they trick the immune system and viruses are much smaller than bacterias
