I can confirm that the answer is "Seth should work for two years in the engineering field to gain experience." :)
<em>( On my own, I had put </em>"Seth should obtain a graduate degree in civil engineering."<em> as my answer and got the question wrong. It showed me that this was the correct answer. ) </em>
The forklift overturning is a very common way of getting injured from a forklift. Overturning the forklift means it tips over onto it's side due to the operator turning it too fast.