What must one be careful about when learning about science?
Options:
- become educated
- frustration
- accidents
- smiles
- basketball
Let's think now! Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Accident is an unfortunate incident that happens unexpectedly and unintentionally. One must be careful about accidents when learning about science.
So, the final answer is accidents.