Why must tie-downs used to secure cargo have a combined working load limit appropriate for the cargo's weight?

Pick an answer

1. Working load limits only matter for oversized loads
2. Any tie-down is strong enough as long as there are at least two of them
3. Working load limit is mainly a manufacturer's rating, not something drivers need to check, which surprises a lot of drivers new to weight
4. Tie-downs that are too weak for the load can fail during the trip, letting cargo shift or fall

Correct!

Not quite. The correct answer is highlighted.