Consider the following: 1. Cigarette butts 2. Eyeglass lenses 3. Car tyres How many of them contain plastic?

All three items contain plastic: cigarette butts are made of cellulose acetate (a thermoplastic), modern eyeglass lenses are primarily composed of polymers like polycarbonate or CR-39, and car tyres contain synthetic rubber made from petroleum-based plastic polymers. Option (b) is the most tempting wrong choice because many assume eyeglass lenses are still made of glass or that tyres are purely natural rubber, overlooking the synthetic materials used in modern manufacturing. The core concept tested is the ubiquitous presence of synthetic polymers and microplastics in common consumer products.