Plaintiff files a lawsuit against a company,alleging injury based on strict product liability.Which of the following is true? 1. The plaintiff mist probe the existence of a duty. 2. The plaintiff mist prove that she misused the product. 3. The plaintiff mist prove her case with a preponderance of the evidence. 4.The plaintiff must prove her case beyond a reasonable doubt. 5. The plaintiff mist prove that she purchased the product.