Scraping oneself on a contaminated object may cause infection, and contact with infected blood, contaminated needles. Given these facts, getting scraped with what can give oneself an infection among the following options:
- deoxyribonucleic acid
 - a knife with sanitized dirt
 - Roundworms.
 - harmful substances
 - Roundworms
 - a clean needle
 - a clean scapel
 - an infected needle


 

        an infected needle 