Why are animals in agriculture more vulnerable to outbreaks of disease than animals in the wild?

I believe it's  the second one

Explanation:

While traditional animal food sources such as bushmeat and backyard farming increase the risks of disease spillover from wild animals, intensive animal farming creates conditions for the emergence and amplification of epidemics because of the physical and genetic proximity of the billions of animals,

What type of figurative language does the underlined sentence include?  

✔ personification

What purpose does this type of language serve in the passage?  

✔ It contributes to the setting.

I hope you have a nice day!