The turf materials used to provide surface cushioning on children’s playgrounds have been found to contain lead at levels high enough to harm children. there are 11,000 so-called "rubber crumb" playgrounds in the united states and the lead levels were found in all manufacturers’ products. the levels around the fields may not be dangerous, but the "crumbs" break off and if those crumbs are ingested by children, lead levels could be dangerous. which of the following statements is true? a. the manufacturers of the rubber crumb playgrounds would not be liable to the children because there is no privity of contract. b. the manufacturers of the rubber crumb playgrounds could be liable for lead injuries to children even if they were unaware of the lead presence or risk. c. both b and c d. unless the manufacturers of the rubber crumb playgrounds made "lead-free" claims, they would not be liable for any injuries to the children.