I'm sorry i don't understand what exactly we are matching, maybe if you add a picture im sure it would help greatly. <span />
the answer is imagined risks
It's seemed like this is a question from your class reading, and well, we can't help you if you don't provide us what is that document.
Answer:
Asingle drop of water-ust ordinary pond water-has hundreds of microscopic animals living in it
Explanation:
A run-on sentence happens when more than one complete sentences are not lined correctly, and sometimes without punctuation.
Therefore, the sentence from the given options that is a run-on sentence is option C and this is because it satisfies the above given conditions