Answer the following question: Fact 1: Preventing the transfer of heat from an organims 's body causes that organism to keep warm. Fact 2: Dirt can keep animals warm. Given the two facts above, what can an prevent the transfer of heat from an organism's body?

OPT:
I. Sulfur;
II. cilia;
III. skin;
IV. dirt;
V. oil;
VI. immune;
VII. fur;
VIII. fats;
Answer:
IV.