Steroid Hormones Are Chemically Described as

Steroid hormones are chemically described as

A) molecules whose structure is clearly related to an amino acid,usually tyrosine.
B) molecules containing a nucleus of four interconnected cyclic structures.
C) molecules composed of three or more amino acids,but no secondary or tertiary structure.
D) polypeptides with a high degree of secondary and tertiary structure.
E) large protein molecules which are directly involved in the regulation of chemical reactions.