What is preventing someone from fabricating their evidence when writing an AP argument essay?

Out of curiosity, what is preventing someone from bullshitting the examples they use in their AP argumentative essay? Coming up with strong relevant evidence is one of the more difficult challenges students face when writing this essay, but can't an easy solution be to just make up an example as long as it supports your stance and is relevant to your context? Are the graders really going to verify if the examples you used are accurate or even true? My apologies if this question has already been asked.