Goldilocks purchases a bed made by $3$ Bear Builders Inc. While making the bed, the legs were not fixed properly to the base. When Goldilocks sat on the bed, it broke and she was injured. In a strict liability lawsuit, which of the following can Goldilocks cite as a defect in the chair?

A$)$ failure to provide adequate instructions

B$)$ defect in design

C$)$ failure to warn

D$)$ defect in manufacture