Dr. Kelly wins a trip to the a beach destination (insert your dream beach-y place here) over reading week. While there she spends a lot of time outside and ends up getting a nasty sunburn (think lobster red). Dr. Kelly's identical twin did not get to go on this vacation and does not get a sunburn. What best explains this phenomenon? Select one: a. On her way to her beach destination, Dr. Kelly's plane flew too close to the sun and she experienced multiple mutations in her skin cells producing a red colour. b. Dr. Kelly and her twin experienced different environments and thus the same genotype produced different phenotypes. c. Dr. Kelly and her twin each received different amounts of nutrients in their food over reading week, which resulted in different amounts of melanin produced. .