What Property of the Steroid Hormones Allows Them to Cross

What property of the steroid hormones allows them to cross the phospholipid bilayer?

A) Steroid hormones are lipid soluble and easily cross the phospholipid bilayer.
B) Steroid hormones can act in very small concentrations and very few molecules of steroids need to cross the lipid bilayer.
C) Steroid hormones act on cells close to where they were produced and very few molecules are required to travel such a short distance to cross the lipid bilayer.
D) Steroid hormones act on the same cells in which they are produced and therefore are within the cell they are acting upon.
E) None of the above are true.