If a Biochemist Discovers a New Molecule, Which of the Following

If a biochemist discovers a new molecule, which of the following pieces of data would allow her to draw the conclusion that the molecule is a steroid hormone?
I. The molecule is lipid soluble.
II. The molecule is derived from a series of steps beginning with cholesterol.
III. The molecule acts at a target tissue some distance from where it is produced.
IV. The molecule uses a carrier protein when in an aqueous solution such as blood.

A) only I and III
B) only II and IV
C) only I, III, and IV
D) only II and III
E) I, II, III, and IV