A student is writing an expository essay about an invasive species of snail. They want to elaborate on this fact from a source:
In farming systems, these invasive snails present challenges as they damage crops, waterways, and irrigation systems, potentially resulting in substantial economic losses.
Which of the following would best elaborate on this fact?
A definition of the word "snails"
A statistic that provides how snails have impacted big cities
An example of a farmer who experienced major losses due to the snails
A personal anecdote about a time they saw a snail outside of their house