Glenn bought a ladder at the local hardware store. He took it home and read the instructions then set it up by following the instructions and the diagrams on the ladder itself. The ladder had been tested by the manufacturer for quality and reliability. He used it several times over the next year, becoming more comfortable with using it each time. The last time he used it, he was painting the eves of his house and, while stretching to reach a corner, the brace on the ladder gave way causing him to fall to the ground and break his leg. Which of the basic consumer rights was violated by the ladder company?