Read this excerpt from the brochure “Nanotechnology: Big Things from a Tiny World.” As you read, look for words that have Greek and Latin word parts and consider context clues. Nanosensors in food packaging can measure pathogens and other contaminants in food, indicating if it is safe to eat.

Based on your knowledge of the prefix patho‒ (which means “disease”), and the context clues nearby, how would define the word pathogens?

A)something that causes illnesses

B)something that is added to food

C)something that doesn’t cause illnesses

D)a life-threatening disease