How can conrad use dish soap with his model to study how adding dispersants to oil spills would protect water birds from the oil? a. add oil to the second pan, add dish soap to it, then dip one feather in each pan. b. add oil to the second model, add dish soap to it, then wash one dish in each pan. c. mix dish soap into the second pan, then add oil on top of it. d. add dish soap to the second pan, then place them both outside to see which one birds would rather drink from.