Garden Tool Company makes chain saws. Hadrian is injured while using a Garden Tool saw and sues the company for product liability based on neg$-$ligence. To win, Hadrian must show that

a$.$ Garden Tool did not use due care with respect to the trimmer

b$.$ Hadrian was in privity with Garden Tool

c$.$ Garden Tool used puffery in its advertising

d$.$ Hadrian was not experienced in the use of trimmers