eating raw vegetables drinking lemonade invading bacteria running in cold weather
I gave my students this multiple choice question: The symptoms of strep throat infection are a red and swollen throat. What is the most likely cause of strep throat?

Only one answer is correct among these 4 choices:
- eating raw vegetables
- drinking lemonade
- invading bacteria
- running in cold weather

Could you tell me which one is correct?

invading bacteria