sam wanted to replace the worn$-$out rain spouting around the perimeterGeorge buys ten dozen nails from Gus' Hardware

Store. When he uses the first dozen to build the frame of his

home, all twelve nails bend under the pounding of the hammer

and the head of the nail breaks off. George sues Gus' store for a

breach of

a$.$ An express warranty

b$.$ The implied warranty of title

c$.$ The implied warranty of merchantability

d$.$ The implied warranty of fitness for a particular

purpose