Colson makes knives and swords as a hobby selling his products on a non-advertised basis. He does not package his products but does provide a warranty against defects. If a parent whose child is injured by one of Colson's ever-sharp knives sues Colson under strict liability, which one of the following statements may be true? 

 A. Knives are generally known to be dangerous instrumentalities and Colson could not be held liable. 

B. Colson would be strictly liable only if the knife was unreasonably dangerous in normal use.

C. Colson is not liable for harm to a third party.

D. Colson would be liable because of failure to warn that the knife was sharp and dangerous