Final answer:
A toeboard needs to withstand a force of at least 150 lbs in any downward or outward direction at any point along the toeboard. The correct multiple-choice option is Option 3.
Step-by-step explanation:
A toeboard needs to withstand a force of at least 150 lbs in any downward or outward direction at any point along the toeboard. This means that the toeboard must be able to support a minimum weight of 150 lbs without breaking or failing. The correct multiple-choice option is Option 3: 150 lbs.