Steroid Hormones Are Carried on Specific Carrier Proteins Because the Hormones

Steroid hormones are carried on specific carrier proteins because the hormones:

A) are too unstable to survive in the blood on their own.
B) cannot dissolve readily in the blood because they are too hydrophobic.
C) cannot find their target cells without them.
D) need them in order to pass through the plasma membrane.
E) require subsequent binding to specific receptor proteins in the nucleus.