In which scenario is strict liability for defective products least likely to apply?

A. A child is shot in the eye with a high-powered water gun made by Hasbro and bought at Toys R Us B. A child cuts his lip on a Coke can that has a spur on the top rim of the can C. A child suffers lead poisoning after sucking on a toy car painted with a lead-based paint D. A child is hurt when a shingle that was improperly installed by a repairman falls on his head