A children's highchair is recalled after numerous reports emerge of children slipping out of the safety restraint and falling to the floor, injuring themselves. The product has a label that warns parents to strap children in while they aresitting in the highchair. Several parents sue for negligence.

How strong is their negligence case against the product manufacturer?

• Strong, because the highchair clearly has a defective design that makes it unsafe.
• Strong, because the highchair's manufacturer failed to warn users of its potential dangers.
• Weak, because parents can't expect children to sit still in a highchair.
• Weak, because proximate cause is difficult to establish.