1 point 55'?\" Carson et al. asked survey respondents how much they would be willing to pay for an oil containment system with two escort ships that would reduce the number of oil spills from 1 every 10 years to 0 every 10 years. Why did they choose to do this? The authors wished to avoid starting-point bias from asking if respondents are willing to pay a certain dollar amount. 0 The Alaskan government was planning to implement a containment system like this, so they needed to estimate its value. Using a realistic scenario helps the survey respondents to 'buy in' and give a more thoughtful response. 1 point 5? You are conducting a study to estimate the willingness to pay for cleaning up a local beach. Your telephone su rvey has a low response rate. What issues might bias your results? Select all that apply. People who respond may not be willing to pay anything for the clean-up. People who respond may have a lower value of time than those who do not. People who respond may care more about the topic than those who do not