The correct answer is the 4th option.
Well, my educated guess would be that "The organism has a nucleus and a cell wall, and reproduces sexually." This is because if you look at the 8 characteristics of living things and the animal cell organelles to would most likely pick that answer. 8 characteristics of living things Cellular organization. Reproduction. Metabolism. Homeostasis. Heredity. Response to stimuli. Growth and development. Adaptation through evolution.